<?xml version="1.0" encoding="US-ASCII"?>
<!-- Generated by DFIN XBRL Schema Document - http://www.dfinsolutions.com/ - on 23-09-2026 10:18:39 PM -->
<!-- Copyright(c) 2026 Donnelley Financial Solutions, Inc. All Rights Reserved. -->
<schema targetNamespace="http://www.nomuraassetmanagement.com/20260923" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:dgif="http://www.nomuraassetmanagement.com/20260923" xmlns:dei="http://xbrl.sec.gov/dei/2025" xmlns:srt-types="http://fasb.org/srt-types/2025" xmlns:deprecated="http://www.xbrl.org/2009/role/deprecated" xmlns:dtr="http://www.xbrl.org/2009/dtr" xmlns:oef="http://xbrl.sec.gov/oef/2025" xmlns:ref="http://www.xbrl.org/2006/ref" xmlns:xbrldt="http://xbrl.org/2005/xbrldt" xmlns:xl="http://www.xbrl.org/2003/XLink" xmlns:us-gaap="http://fasb.org/us-gaap/2025" xmlns:oef-pre="http://xbrl.sec.gov/oef-pre/2025" xmlns:oef-lab="http://xbrl.sec.gov/oef-lab/2025" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:country="http://xbrl.sec.gov/country/2025" xmlns:us-roles="http://fasb.org/us-roles/2025" xmlns:enum2="http://xbrl.org/2020/extensible-enumerations-2.0" xmlns:us-types="http://fasb.org/us-types/2025" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dtr-types="http://www.xbrl.org/dtr/type/2024-01-31" xmlns:oef-def="http://xbrl.sec.gov/oef-def/2025" xmlns:negated="http://www.xbrl.org/2009/role/negated" xmlns:xbrldi="http://xbrl.org/2006/xbrldi" xmlns:srt="http://fasb.org/srt/2025" xmlns:oef-sr="http://xbrl.sec.gov/oef-sr/2025" xmlns:srt-roles="http://fasb.org/srt-roles/2025" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xbrli="http://www.xbrl.org/2003/instance" xmlns:stpr="http://xbrl.sec.gov/stpr/2025" elementFormDefault="qualified">
	<import namespace="http://www.xbrl.org/2003/instance" schemaLocation="http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd"/>
	<import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd"/>
	<import namespace="http://xbrl.sec.gov/dei/2025" schemaLocation="https://xbrl.sec.gov/dei/2025/dei-2025.xsd"/>
	<import namespace="http://fasb.org/us-types/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd"/>
	<import namespace="http://www.xbrl.org/dtr/type/2024-01-31" schemaLocation="https://www.xbrl.org/dtr/type/2024-01-31/types.xsd"/>   
	<import namespace="http://xbrl.sec.gov/country/2025" schemaLocation="https://xbrl.sec.gov/country/2025/country-2025.xsd"/>
	<import namespace="http://fasb.org/srt/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd"/>
	<import namespace="http://fasb.org/srt-types/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd"/>
	<import namespace="http://xbrl.sec.gov/oef-sr/2025" schemaLocation="https://xbrl.sec.gov/oef/2025/oef-sr-2025.xsd"/>
	<import namespace="http://fasb.org/us-gaap/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd"/>
	<import namespace="http://fasb.org/us-roles/2025" schemaLocation="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd"/>
	<import namespace="http://fasb.org/srt-roles/2025" schemaLocation="https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd"/>
	<annotation>
		<appinfo>
			<link:linkbase id="lnk">
				<link:arcroleRef arcroleURI="http://xbrl.org/int/dim/arcrole/domain-member" xlink:type="simple" xlink:href="http://www.xbrl.org/2005/xbrldt-2005.xsd#domain-member"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReport" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReport"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportHoldingsDetails"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportLineGraphDetails"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ShareholderReportAverageAnnualReturnDetails"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/ClassOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#ClassOnly"/>
				<link:roleRef roleURI="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists" xlink:type="simple" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd#eedm"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/LargestHoldingOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#LargestHoldingOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/Other1CategoryOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#Other1CategoryOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#AdditionalIndexOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#BroadBasedIndexOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/Other2CategoryOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#Other2CategoryOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/SalesLoadOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#SalesLoadOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/MaturityOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#MaturityOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/IndustrySectorOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#IndustrySectorOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/CreditQualityOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#CreditQualityOnly"/>
				<link:roleRef roleURI="http://xbrl.sec.gov/oef/role/GeographicRegionOnly" xlink:type="simple" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#GeographicRegionOnly"/>
				<link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ShareholderReport">              
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000211235Member" xlink:label="C000211235Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000211235Member" order="2.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011005Member" xlink:label="C000011005Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011005Member" order="3.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011004Member" xlink:label="C000011004Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011004Member" order="4.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011003Member" xlink:label="C000011003Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011003Member" order="5.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011001Member" xlink:label="C000011001Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011001Member" order="6.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011010Member" xlink:label="C000011010Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011010Member" order="7.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011012Member" xlink:label="C000011012Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011012Member" order="8.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011013Member" xlink:label="C000011013Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011013Member" order="9.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011014Member" xlink:label="C000011014Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011014Member" order="10.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000169262Member" xlink:label="C000169262Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000169262Member" order="11.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000228679Member" xlink:label="C000228679Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000228679Member" order="12.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085184Member" xlink:label="C000085184Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085184Member" order="13.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085183Member" xlink:label="C000085183Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085183Member" order="14.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085182Member" xlink:label="C000085182Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085182Member" order="15.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085181Member" xlink:label="C000085181Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085181Member" order="16.0" />
				</link:presentationLink>
				<link:presentationLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_ShareClassDomain" xlink:label="ShareClassDomain"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000211235Member" xlink:label="C000211235Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000211235Member" order="2.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011005Member" xlink:label="C000011005Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011005Member" order="3.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011004Member" xlink:label="C000011004Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011004Member" order="4.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011003Member" xlink:label="C000011003Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011003Member" order="5.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011001Member" xlink:label="C000011001Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011001Member" order="6.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011010Member" xlink:label="C000011010Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011010Member" order="7.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011012Member" xlink:label="C000011012Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011012Member" order="8.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011013Member" xlink:label="C000011013Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011013Member" order="9.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011014Member" xlink:label="C000011014Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000011014Member" order="10.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000169262Member" xlink:label="C000169262Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000169262Member" order="11.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000228679Member" xlink:label="C000228679Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000228679Member" order="12.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085184Member" xlink:label="C000085184Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085184Member" order="13.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085183Member" xlink:label="C000085183Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085183Member" order="14.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085182Member" xlink:label="C000085182Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085182Member" order="15.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085181Member" xlink:label="C000085181Member"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="ShareClassDomain" xlink:to="C000085181Member" order="16.0" />   
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="InvestmentTypeCategorizationMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_MaturityDomain" xlink:label="MaturityDomain"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherCategory1Domain" xlink:label="OtherCategory1Domain"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherCategory2Domain" xlink:label="OtherCategory2Domain"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_LargestHoldingsDomain" xlink:label="LargestHoldingsDomain"/>
					<!--GeographicRegionDomain Only presentation and label linkbases-->			 
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_GeographicRegionDomain" xlink:label="GeographicRegionDomain"/>
					<!--IndustrySectorDomain Only presentation and label linkbases-->	
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_IndustrySectorDomain" xlink:label="IndustrySectorDomain"/>	
					<link:loc xlink:type="locator" xlink:href="#dgif_CapitalGoodsMember" xlink:label="CapitalGoodsMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="CapitalGoodsMember" order="2.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_ConsumerCyclicalMember" xlink:label="ConsumerCyclicalMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="ConsumerCyclicalMember" order="3.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_ConsumerNonCyclicalMember" xlink:label="ConsumerNonCyclicalMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="ConsumerNonCyclicalMember" order="4.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_FinanceCompaniesMember" xlink:label="FinanceCompaniesMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="FinanceCompaniesMember" order="5.0" />
					<link:loc xlink:type="locator" xlink:href="#dgif_ElectricMember" xlink:label="ElectricMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="ElectricMember" order="6.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_CommunicationsSectorMember" xlink:label="CommunicationsSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="CommunicationsSectorMember" order="7.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TechnologySectorMember" xlink:label="TechnologySectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="TechnologySectorMember" order="8.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InsuranceSectorMember" xlink:label="InsuranceSectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="InsuranceSectorMember" order="9.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EnergySectorMember" xlink:label="EnergySectorMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="EnergySectorMember" order="10.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BankingMember" xlink:label="BankingMember"/>
					<link:presentationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/parent-child" xlink:from="IndustrySectorDomain" xlink:to="BankingMember" order="11.0" />
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NaturalGasReservesMember" xlink:label="NaturalGasReservesMember"/>
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					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000085184Member" order="12.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085183Member" xlink:label="C000085183Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000085183Member" order="13.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085182Member" xlink:label="C000085182Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000085182Member" order="14.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085181Member" xlink:label="C000085181Member"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ShareClassDomain" xlink:to="C000085181Member" order="15.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/Other1CategoryOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherCategory1Domain" xlink:label="OtherCategory1Domain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/Other2CategoryOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_OtherCategory2Domain" xlink:label="OtherCategory2Domain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/LargestHoldingOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_LargestHoldingsDomain" xlink:label="LargestHoldingsDomain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/SalesLoadOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_WithSalesLoadMember" xlink:label="WithSalesLoadMember"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://fasb.org/us-gaap/role/eedm/ExtensibleEnumerationLists">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeCategorizationMember" xlink:label="InvestmentTypeCategorizationMember"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/BroadBasedIndexOnly">               
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_BroadBasedIndexDomain" xlink:label="BroadBasedIndexDomain"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_BloombergUSCorporateBondIndexMember" xlink:label="BloombergUSCorporateBondIndexMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="BloombergUSCorporateBondIndexMember" order="1.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_BloombergUSAggregateIndexMember" xlink:label="BloombergUSAggregateIndexMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="BloombergUSAggregateIndexMember" order="2.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_BloombergLongUSCorporateIndexMember" xlink:label="BloombergLongUSCorporateIndexMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="BloombergLongUSCorporateIndexMember" order="3.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_MorningstarLSTAUSLeveragedLoanIndexMember" xlink:label="MorningstarLSTAUSLeveragedLoanIndexMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="BroadBasedIndexDomain" xlink:to="MorningstarLSTAUSLeveragedLoanIndexMember" order="4.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/AdditionalIndexOnly">              
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_AdditionalIndexDomain" xlink:label="AdditionalIndexDomain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/MaturityOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_MaturityDomain" xlink:label="MaturityDomain"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/IndustrySectorOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_IndustrySectorDomain" xlink:label="IndustrySectorDomain"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_CapitalGoodsMember" xlink:label="CapitalGoodsMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="CapitalGoodsMember" order="1.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_ConsumerCyclicalMember" xlink:label="ConsumerCyclicalMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="ConsumerCyclicalMember" order="2.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_ConsumerNonCyclicalMember" xlink:label="ConsumerNonCyclicalMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="ConsumerNonCyclicalMember" order="3.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_FinanceCompaniesMember" xlink:label="FinanceCompaniesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="FinanceCompaniesMember" order="4.0"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_ElectricMember" xlink:label="ElectricMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="ElectricMember" order="5.0"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BankingMember" xlink:label="BankingMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="BankingMember" order="6.0"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NaturalGasReservesMember" xlink:label="NaturalGasReservesMember"/>
					<link:definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="IndustrySectorDomain" xlink:to="NaturalGasReservesMember" order="7.0"/>
				</link:definitionLink>
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/CreditQualityOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_CreditQualityDomain" xlink:label="CreditQualityDomain"/>
				</link:definitionLink>
				<!--GeographicRegionOnly use only for STPR-->
				<link:definitionLink xlink:type="extended" xlink:role="http://xbrl.sec.gov/oef/role/GeographicRegionOnly">
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/oef/2025/oef-2025.xsd#oef_GeographicRegionDomain" xlink:label="GeographicRegionDomain"/>
				</link:definitionLink>
				<link:labelLink xlink:type="extended" xlink:role="http://www.xbrl.org/2003/role/link">               
					<link:loc xlink:type="locator" xlink:href="#dgif_BloombergUSCorporateBondIndexMember" xlink:label="BloombergUSCorporateBondIndexMember"/>
					<link:label xlink:type="resource" xlink:label="label_BloombergUSCorporateBondIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Bloomberg US Corporate Bond Index [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BloombergUSCorporateBondIndexMember" xlink:to="label_BloombergUSCorporateBondIndexMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_CapitalGoodsMember" xlink:label="CapitalGoodsMember"/>
					<link:label xlink:type="resource" xlink:label="label_CapitalGoodsMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Capital Goods [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="CapitalGoodsMember" xlink:to="label_CapitalGoodsMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_ConsumerCyclicalMember" xlink:label="ConsumerCyclicalMember"/>
					<link:label xlink:type="resource" xlink:label="label_ConsumerCyclicalMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Consumer Cyclical [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConsumerCyclicalMember" xlink:to="label_ConsumerCyclicalMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_ConsumerNonCyclicalMember" xlink:label="ConsumerNonCyclicalMember"/>
					<link:label xlink:type="resource" xlink:label="label_ConsumerNonCyclicalMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Consumer Non Cyclical [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ConsumerNonCyclicalMember" xlink:to="label_ConsumerNonCyclicalMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_FinanceCompaniesMember" xlink:label="FinanceCompaniesMember"/>
					<link:label xlink:type="resource" xlink:label="label_FinanceCompaniesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Finance Companies [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinanceCompaniesMember" xlink:to="label_FinanceCompaniesMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_ElectricMember" xlink:label="ElectricMember"/>
					<link:label xlink:type="resource" xlink:label="label_ElectricMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Electric [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="ElectricMember" xlink:to="label_ElectricMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_BloombergUSAggregateIndexMember" xlink:label="BloombergUSAggregateIndexMember"/>
					<link:label xlink:type="resource" xlink:label="label_BloombergUSAggregateIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Bloomberg US Aggregate Index [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BloombergUSAggregateIndexMember" xlink:to="label_BloombergUSAggregateIndexMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000211235Member" xlink:label="C000211235Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000211235Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000211235 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000211235Member" xlink:to="label_C000211235Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000211235Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R6</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000211235Member" xlink:to="label_C000211235Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011005Member" xlink:label="C000011005Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011005Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011005 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011005Member" xlink:to="label_C000011005Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000011005Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Institutional Class</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011005Member" xlink:to="label_C000011005Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011004Member" xlink:label="C000011004Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011004Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011004 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011004Member" xlink:to="label_C000011004Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000011004Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class R</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011004Member" xlink:to="label_C000011004Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011003Member" xlink:label="C000011003Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011003Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011003 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011003Member" xlink:to="label_C000011003Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000011003Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class C</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011003Member" xlink:to="label_C000011003Member_2"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011001Member" xlink:label="C000011001Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011001Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011001 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011001Member" xlink:to="label_C000011001Member"/>
										<link:label xlink:type="resource" xlink:label="label_C000011001Member_2" xlink:role="http://www.xbrl.org/2003/role/terseLabel" xml:lang="en-US">Class A</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011001Member" xlink:to="label_C000011001Member_2"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_TechnologySectorMember" xlink:label="TechnologySectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_TechnologySectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Technology Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="TechnologySectorMember" xlink:to="label_TechnologySectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InsuranceSectorMember" xlink:label="InsuranceSectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_InsuranceSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Insurance Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InsuranceSectorMember" xlink:to="label_InsuranceSectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_EnergySectorMember" xlink:label="EnergySectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_EnergySectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Energy Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="EnergySectorMember" xlink:to="label_EnergySectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_BankingMember" xlink:label="BankingMember"/>
					<link:label xlink:type="resource" xlink:label="label_BankingMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Banking [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BankingMember" xlink:to="label_BankingMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd#srt_NaturalGasReservesMember" xlink:label="NaturalGasReservesMember"/>
					<link:label xlink:type="resource" xlink:label="label_NaturalGasReservesMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Natural Gas [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="NaturalGasReservesMember" xlink:to="label_NaturalGasReservesMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011010Member" xlink:label="C000011010Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011010Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011010 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011010Member" xlink:to="label_C000011010Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011012Member" xlink:label="C000011012Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011012Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011012 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011012Member" xlink:to="label_C000011012Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011013Member" xlink:label="C000011013Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011013Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011013 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011013Member" xlink:to="label_C000011013Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000011014Member" xlink:label="C000011014Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000011014Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000011014 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000011014Member" xlink:to="label_C000011014Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000169262Member" xlink:label="C000169262Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000169262Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000169262 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000169262Member" xlink:to="label_C000169262Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_BloombergLongUSCorporateIndexMember" xlink:label="BloombergLongUSCorporateIndexMember"/>
					<link:label xlink:type="resource" xlink:label="label_BloombergLongUSCorporateIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Bloomberg Long US Corporate Index [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="BloombergLongUSCorporateIndexMember" xlink:to="label_BloombergLongUSCorporateIndexMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_MorningstarLSTAUSLeveragedLoanIndexMember" xlink:label="MorningstarLSTAUSLeveragedLoanIndexMember"/>
					<link:label xlink:type="resource" xlink:label="label_MorningstarLSTAUSLeveragedLoanIndexMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Morningstar LSTA US Leveraged Loan Index [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="MorningstarLSTAUSLeveragedLoanIndexMember" xlink:to="label_MorningstarLSTAUSLeveragedLoanIndexMember"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000228679Member" xlink:label="C000228679Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000228679Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000228679 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000228679Member" xlink:to="label_C000228679Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085184Member" xlink:label="C000085184Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000085184Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000085184 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000085184Member" xlink:to="label_C000085184Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085183Member" xlink:label="C000085183Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000085183Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000085183 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000085183Member" xlink:to="label_C000085183Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085182Member" xlink:label="C000085182Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000085182Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000085182 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000085182Member" xlink:to="label_C000085182Member"/>
					<link:loc xlink:type="locator" xlink:href="#dgif_C000085181Member" xlink:label="C000085181Member"/>
					<link:label xlink:type="resource" xlink:label="label_C000085181Member" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">C000085181 [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="C000085181Member" xlink:to="label_C000085181Member"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_HealthcareSectorMember" xlink:label="HealthcareSectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_HealthcareSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Healthcare Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="HealthcareSectorMember" xlink:to="label_HealthcareSectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_FinancialServicesSectorMember" xlink:label="FinancialServicesSectorMember"/>
					<link:label xlink:type="resource" xlink:label="label_FinancialServicesSectorMember" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Financial Services Sector [Member]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="FinancialServicesSectorMember" xlink:to="label_FinancialServicesSectorMember"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentTypeAxis" xlink:label="InvestmentTypeAxis"/>
					<link:label xlink:type="resource" xlink:label="label_InvestmentTypeAxis" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Investment Type [Axis]</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentTypeAxis" xlink:to="label_InvestmentTypeAxis" priority="1"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_AssetsNet" xlink:label="AssetsNet"/>
					<link:label xlink:type="resource" xlink:label="label_AssetsNet" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Net Assets</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="AssetsNet" xlink:to="label_AssetsNet" priority="1"/>
					<link:loc xlink:type="locator" xlink:href="https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd#us-gaap_InvestmentCompanyPortfolioTurnover" xlink:label="InvestmentCompanyPortfolioTurnover"/>
					<link:label xlink:type="resource" xlink:label="label_InvestmentCompanyPortfolioTurnover" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">Investment Company Portfolio Turnover</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="InvestmentCompanyPortfolioTurnover" xlink:to="label_InvestmentCompanyPortfolioTurnover" priority="1"/>                
					<link:loc xlink:type="locator" xlink:href="https://xbrl.sec.gov/dei/2025/dei-2025.xsd#dei_NoTradingSymbolFlag" xlink:label="dei_NoTradingSymbolFlag"/>
					<link:label xlink:type="resource" xlink:label="label_NoTradingSymbolFlag" xlink:role="http://www.xbrl.org/2003/role/label" xml:lang="en-US">No Trading Symbol Flag</link:label>
					<link:labelArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="dei_NoTradingSymbolFlag" xlink:to="label_NoTradingSymbolFlag" priority="1"/>		
				</link:labelLink>
			</link:linkbase>
		</appinfo>
	</annotation>   
	<element name="BloombergUSCorporateBondIndexMember" id="dgif_BloombergUSCorporateBondIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="CapitalGoodsMember" id="dgif_CapitalGoodsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="ConsumerCyclicalMember" id="dgif_ConsumerCyclicalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="ConsumerNonCyclicalMember" id="dgif_ConsumerNonCyclicalMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="FinanceCompaniesMember" id="dgif_FinanceCompaniesMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="ElectricMember" id="dgif_ElectricMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="BloombergUSAggregateIndexMember" id="dgif_BloombergUSAggregateIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000211235Member" id="dgif_C000211235Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011005Member" id="dgif_C000011005Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011004Member" id="dgif_C000011004Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011003Member" id="dgif_C000011003Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011001Member" id="dgif_C000011001Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011010Member" id="dgif_C000011010Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011012Member" id="dgif_C000011012Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011013Member" id="dgif_C000011013Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000011014Member" id="dgif_C000011014Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000169262Member" id="dgif_C000169262Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="BloombergLongUSCorporateIndexMember" id="dgif_BloombergLongUSCorporateIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="MorningstarLSTAUSLeveragedLoanIndexMember" id="dgif_MorningstarLSTAUSLeveragedLoanIndexMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000228679Member" id="dgif_C000228679Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000085184Member" id="dgif_C000085184Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000085183Member" id="dgif_C000085183Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000085182Member" id="dgif_C000085182Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
	<element name="C000085181Member" id="dgif_C000085181Member" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" abstract="true" nillable="true" xbrli:periodType="duration"/>
</schema>
