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(:Test:CastableAs498:)
(:Written By:Joanne Tong:)
(:Date:2005-07-21T09:50:23-07:00:)
(:Purpose:Try xs:gMonthDay(--05-31) castable as xs:gDay:)
(:*******************************************************:)

xs:gMonthDay("--05-31") castable as xs:gDay