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(: Test: K-SeqExprCast-701                               :)
(: Written by: Frans Englich                             :)
(: Date: 2006-10-05T18:29:38+02:00                       :)
(: Purpose: 'castable as' involving xs:yearMonthDuration as source type and xs:untypedAtomic as target type should always evaluate to true. :)
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xs:yearMonthDuration("P1Y12M") castable as xs:untypedAtomic