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(:Test:CastAs361:)
(:Written By:Joanne Tong:)
(:Date:2005-07-21T09:49:55-07:00:)
(:Purpose:Try casting xs:dateTime(1999-05-31T13:20:00) to xs:yearMonthDuration:)
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xs:dateTime("1999-05-31T13:20:00") cast as xs:yearMonthDuration