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(:Test: year-from-date-9                                 :)
(:Written By: Carmelo Montanez                           :)
(:Date: June 6, 2005                                     :)
(:Purpose: Evaluates The "year-from-date" function       :)
(:as part of a "-" expression.                           :) 
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fn:year-from-date(xs:date("1970-01-01Z")) - fn:year-from-date(xs:date("1970-01-01Z"))