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  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedPeriodStartLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedPeriodStartLabel"/>
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  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedLabel"/>
  <link:roleRef roleURI="http://www.xbrl.org/2009/role/negatedTotalLabel" xlink:type="simple" xlink:href="http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd#negatedTotalLabel"/>
  <link:labelLink xlink:role="http://www.xbrl.org/2003/role/link" xlink:type="extended">
    <link:label id="lab_ck0000811030_ETFRisksListingStandardsRiskMember_label_en-US" xlink:label="lab_ck0000811030_ETFRisksListingStandardsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Listing Standards Risk Member</link:label>
    <link:label id="lab_ck0000811030_ETFRisksListingStandardsRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_ETFRisksListingStandardsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Listing Standards Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_ETFRisksListingStandardsRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_ETFRisksListingStandardsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_ETFRisksListingStandardsRiskMember" xlink:to="lab_ck0000811030_ETFRisksListingStandardsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember_label_en-US" xlink:label="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk of Focusing Investment On Region Or Country, Turkey Investment Risk Member</link:label>
    <link:label id="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Risk of Focusing Investment On Region Or Country, Turkey Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember" xlink:to="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryTurkeyInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_ForeignCurrencyRiskMember_label_en-US" xlink:label="lab_ck0000811030_ForeignCurrencyRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Foreign Currency Risk Member</link:label>
    <link:label id="lab_ck0000811030_ForeignCurrencyRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_ForeignCurrencyRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Foreign Currency Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_ForeignCurrencyRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_ForeignCurrencyRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_ForeignCurrencyRiskMember" xlink:to="lab_ck0000811030_ForeignCurrencyRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_PrivatePlacementRiskMember_label_en-US" xlink:label="lab_ck0000811030_PrivatePlacementRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Private Placement Risk Member</link:label>
    <link:label id="lab_ck0000811030_PrivatePlacementRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_PrivatePlacementRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Private Placement Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_PrivatePlacementRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_PrivatePlacementRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_PrivatePlacementRiskMember" xlink:to="lab_ck0000811030_PrivatePlacementRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_ETFRisksMember_label_en-US" xlink:label="lab_ck0000811030_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:label id="lab_ck0000811030_ETFRisksMember_documentation_en-US" xlink:label="lab_ck0000811030_ETFRisksMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_ETFRisksMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_ETFRisksMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_ETFRisksMember" xlink:to="lab_ck0000811030_ETFRisksMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_EquitySecuritiesRiskMember_label_en-US" xlink:label="lab_ck0000811030_EquitySecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Equity Securities Risk Member</link:label>
    <link:label id="lab_ck0000811030_EquitySecuritiesRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_EquitySecuritiesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Equity Securities Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_EquitySecuritiesRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_EquitySecuritiesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_EquitySecuritiesRiskMember" xlink:to="lab_ck0000811030_EquitySecuritiesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_LargeCapInvestmentRiskMember_label_en-US" xlink:label="lab_ck0000811030_LargeCapInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Large-Cap Investment Risk Member</link:label>
    <link:label id="lab_ck0000811030_LargeCapInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_LargeCapInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Large-Cap Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_LargeCapInvestmentRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_LargeCapInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_LargeCapInvestmentRiskMember" xlink:to="lab_ck0000811030_LargeCapInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_label_en-US" xlink:label="lab_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Risk Member</link:label>
    <link:label id="lab_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Costs Of Buying Or Selling Shares Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:to="lab_ck0000811030_ETFRisksCostsOfBuyingOrSellingSharesRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember_label_en-US" xlink:label="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk of Focusing Investment On Region Or Country Member</link:label>
    <link:label id="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember_documentation_en-US" xlink:label="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Risk of Focusing Investment On Region Or Country Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember" xlink:to="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_DepositaryReceiptsRiskMember_label_en-US" xlink:label="lab_ck0000811030_DepositaryReceiptsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Depositary Receipts Risk Member</link:label>
    <link:label id="lab_ck0000811030_DepositaryReceiptsRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_DepositaryReceiptsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Depositary Receipts Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_DepositaryReceiptsRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_DepositaryReceiptsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_DepositaryReceiptsRiskMember" xlink:to="lab_ck0000811030_DepositaryReceiptsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_C000246846Member_label_en-US" xlink:label="lab_ck0000811030_C000246846Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pabrai Wagons Fund Institutional Class Shares</link:label>
    <link:label id="lab_ck0000811030_C000246846Member_documentation_en-US" xlink:label="lab_ck0000811030_C000246846Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CIK 0000811030 Series S000081831 Pabrai Wagons Fund Class/Contract C000244913 Retail Class WAGNX CIK 0000811030 Series S000081831 Pabrai Wagons Fund Class/Contract C000246846 Institutional Class (no symbol)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_C000246846Member" xlink:href="ck0000811030-20261028.xsd#ck0000811030_C000246846Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_C000246846Member" xlink:to="lab_ck0000811030_C000246846Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_KeyManRiskMember_label_en-US" xlink:label="lab_ck0000811030_KeyManRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Key Man Risk Member</link:label>
    <link:label id="lab_ck0000811030_KeyManRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_KeyManRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Key Man Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_KeyManRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_KeyManRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_KeyManRiskMember" xlink:to="lab_ck0000811030_KeyManRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember_label_en-US" xlink:label="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Risk of Focusing Investment On Region Or Country, India Investment Risk Member</link:label>
    <link:label id="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Risk of Focusing Investment On Region Or Country, India Investment Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember" xlink:to="lab_ck0000811030_RiskOfFocusingInvestmentOnRegionOrCountryIndiaInvestmentRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_RealEstateInvestmentTrustsRiskMember_label_en-US" xlink:label="lab_ck0000811030_RealEstateInvestmentTrustsRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Real Estate Investment Trusts Risk Member</link:label>
    <link:label id="lab_ck0000811030_RealEstateInvestmentTrustsRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_RealEstateInvestmentTrustsRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Real Estate Investment Trusts Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_RealEstateInvestmentTrustsRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_RealEstateInvestmentTrustsRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_RealEstateInvestmentTrustsRiskMember" xlink:to="lab_ck0000811030_RealEstateInvestmentTrustsRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_SectorEmphasisRiskMember_label_en-US" xlink:label="lab_ck0000811030_SectorEmphasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Sector Emphasis Risk Member</link:label>
    <link:label id="lab_ck0000811030_SectorEmphasisRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_SectorEmphasisRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Sector Emphasis Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_SectorEmphasisRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_SectorEmphasisRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_SectorEmphasisRiskMember" xlink:to="lab_ck0000811030_SectorEmphasisRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_S000081831Member_label_en-US" xlink:label="lab_ck0000811030_S000081831Member" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Pabrai Wagons Fund</link:label>
    <link:label id="lab_ck0000811030_S000081831Member_documentation_en-US" xlink:label="lab_ck0000811030_S000081831Member" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">CIK 0000811030 Series S000081831 Pabrai Wagons Fund Class/Contract C000244913 Retail Class WAGNX CIK 0000811030 Series S000081831 Pabrai Wagons Fund Class/Contract C000246846 Institutional Class (no symbol)</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_S000081831Member" xlink:href="ck0000811030-20261028.xsd#ck0000811030_S000081831Member"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_S000081831Member" xlink:to="lab_ck0000811030_S000081831Member" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_label_en-US" xlink:label="lab_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Risk member</link:label>
    <link:label id="lab_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">ETF Risks, Shares May Trade At Prices Other Than NAV Risk member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:to="lab_ck0000811030_ETFRisksSharesMayTradeAtPricesOtherThanNAVRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_EconomicAndMarketRiskMember_label_en-US" xlink:label="lab_ck0000811030_EconomicAndMarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Economic And Market Risk Member</link:label>
    <link:label id="lab_ck0000811030_EconomicAndMarketRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_EconomicAndMarketRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Economic And Market Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_EconomicAndMarketRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_EconomicAndMarketRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_EconomicAndMarketRiskMember" xlink:to="lab_ck0000811030_EconomicAndMarketRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_ConsumerDiscretionarySectorRiskMember_label_en-US" xlink:label="lab_ck0000811030_ConsumerDiscretionarySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">Consumer Discretionary Sector Risk Member</link:label>
    <link:label id="lab_ck0000811030_ConsumerDiscretionarySectorRiskMember_documentation_en-US" xlink:label="lab_ck0000811030_ConsumerDiscretionarySectorRiskMember" xlink:role="http://www.xbrl.org/2003/role/documentation" xlink:type="resource" xml:lang="en-US">Consumer Discretionary Sector Risk Member</link:label>
    <link:loc xlink:type="locator" xlink:label="loc_ck0000811030_ConsumerDiscretionarySectorRiskMember" xlink:href="ck0000811030-20261028.xsd#ck0000811030_ConsumerDiscretionarySectorRiskMember"/>
    <link:labelArc xlink:arcrole="http://www.xbrl.org/2003/arcrole/concept-label" xlink:from="loc_ck0000811030_ConsumerDiscretionarySectorRiskMember" xlink:to="lab_ck0000811030_ConsumerDiscretionarySectorRiskMember" xlink:type="arc" order="1"/>
    <link:label id="lab_ck0000811030_ETFRisksCashRedemptionRiskMember_label_en-US" xlink:label="lab_ck0000811030_ETFRisksCashRedemptionRiskMember" xlink:role="http://www.xbrl.org/2003/role/label" xlink:type="resource" xml:lang="en-US">ETF Risks, Cash Redemption Risk Member</link:label>
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