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(:Test:CastableAs497:)
(:Written By:Joanne Tong:)
(:Date:2005-07-21T09:50:23-07:00:)
(:Purpose:Try xs:gMonthDay(--05-31Z) castable as xs:gMonthDay:)
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xs:gMonthDay("--05-31Z") castable as xs:gMonthDay