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(: Test: K-SeqExprInstanceOf-43                          :)
(: Written by: Frans Englich                             :)
(: Date: 2006-10-05T18:29:37+02:00                       :)
(: Purpose: A test whose essence is: `((), "xs:string") instance of xs:string`. :)
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((), "xs:string") instance of xs:string