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When you fail, try, then try again:
?- repeat,format("again!~n"),maybe,format("success~n"). again! again! success true ; again! success true ; again! again! again! again! again! again! again! again! again! success true ; again! success true ...
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When you fail, try, then try again:
?- repeat,format("again!~n"),maybe,format("success~n"). again! again! success true ; again! success true ; again! again! again! again! again! again! again! again! again! success true ; again! success true ...