"d" means the number of calendar days in:
(i) where "Lag" is specified as the Observation Method in the relevant Pricing Supplement, the relevant Interest Period; or
(ii) where "Observation Shift" is specified as the Observation Method in the relevant Pricing Supplement, the relevant Observation Period;
"D" is the number specified in the relevant Pricing Supplement (or, if no such number is specified, 365);
"do" means the number of London Banking Days in:
(i) where "Lag" is specified as the Observation Method in the relevant Pricing Supplement, the relevant Interest Period; or
(ii) where "Observation Shift" is specified as the Observation Method in the relevant Pricing Supplement, the relevant Observation Period;
"i" means a series of whole numbers from one to do, each representing the relevant London Banking Day in chronological order from, and including, the first London Banking Day in:
(i) where "Lag" is specified as the Observation Method in the relevant Pricing Supplement, the relevant Interest Period; or
(ii) where "Observation Shift" is specified as the Observation Method in the relevant Pricing Supplement, the relevant Observation Period;
to, and including, the last London Banking Day in such period;
"London Banking Day" means any day on which commercial banks are open for general business (including dealing in foreign exchange and foreign currency deposits) in London;
"ni" for any London Banking Day "i", in the relevant Interest Period or Observation Period (as applicable) is the number of calendar days from, and including, such London Banking Day "i" up to, but excluding, the following London Banking Day;
"Observation Period" means, in respect of an Interest Period, the period from, and including, the date falling "p" London Banking Days prior to the first day of such Interest Period (and the first Interest Period shall begin on and include the Interest Commencement Date) and ending on, but excluding, the date which is "p" London Banking Days prior to the Interest Payment Date for such Interest Period (or the date falling "p" London Banking Days prior to such earlier date, if any, on which the Notes become due and payable);
"p" for any Interest Period or Observation Period (as applicable), means the number of London Banking Days specified as the "Lag Period" or the "Observation Shift Period" (as applicable) in the relevant Pricing Supplement;
"SONIA Reference Rate" means, in respect of any London Banking Day, a reference rate equal to the daily Sterling Overnight Index Average ("SONIA") rate for such London Banking Day as provided by the administrator of SONIA to authorised distributors and as then published on the Relevant Screen Page (or if the Relevant Screen Page is unavailable, as otherwise is published by such authorised distributors) on the London Banking Day immediately following such London Banking Day; and
"SONIAi" means the SONIA Reference Rate for:
(i) where "Lag" is specified as the Observation Method in the relevant Pricing Supplement, the London Banking Day falling "p" London Banking Days prior to the relevant London Banking Day "i"; or
(ii) where "Observation Shift" is specified as the Observation Method in the relevant Pricing Supplement, the relevant London Banking Day "i";
(iv)If, in respect of any London Banking Day in the relevant Interest Period or Observation Period (as applicable), the Calculation Agent determines that the SONIA Reference Rate is not available on the