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(:Test: op-subtract-dayTimeDuration-from-dateTime-1      :)
(:Written By: Carmelo Montanez                           :)
(:Date: July 1, 2005                                     :)
(:Purpose: Evaluates The "subtract-dayTimeDuration-from-dateTime" operator :)
(:As per example 1 (for this function)of the F&O specs.  :)
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xs:dateTime("2000-10-30T11:12:00") - xs:dayTimeDuration("P3DT1H15M")