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(: Test: K-SeqSubsequenceFunc-7                          :)
(: Written by: Frans Englich                             :)
(: Date: 2006-10-05T18:29:40+02:00                       :)
(: Purpose: A test whose essence is: `count(subsequence((1, 2, 3, "four"), 4, 1)) eq 1`. :)
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count(subsequence((1, 2, 3, "four"), 4, 1)) eq 1