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(: Test: K-NumericUnaryMinus-12                          :)
(: Written by: Frans Englich                             :)
(: Date: 2006-10-05T18:29:36+02:00                       :)
(: Purpose: A test whose essence is: `----+-+-++-+-+-+-+++-+--+--3 eq -3`. :)
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----+-+-++-+-+-+-+++-+--+--3 eq -3