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(:Test: op-subtract-yearMonthDuration-from-dateTime-1    :)
(:Written By: Carmelo Montanez                           :)
(:date: July 5, 2005                                     :)
(:Purpose: Evaluates The "subtract-yearMonthDuration-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:yearMonthDuration("P1Y2M")