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14
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false
((b|(b|a)a)b|a)* abaaba
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((b|(b|a)a)b|a)* abbbaa
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((b|(b|a)a)b|a)* abaabbaabaaaaa
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((b|(b|a)a)b|a)* abaaaaab
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true
(a(a|b)|b)*b|a aaaab
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b(b|((b|ba)b)*) bbbbb
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a|a((a|b)b)*b aababababbbabb
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a|a((a|b)b)*b aabbbbbbbabbbb
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a|a((a|b)b)*b abbbbabaaaabba
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a|a((a|b)b)*b aabbaaa
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