diff --git "a/regset_test.csv" "b/regset_test.csv"
new file mode 100644--- /dev/null
+++ "b/regset_test.csv"
@@ -0,0 +1,20951 @@
+context,answer
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+b|(aa|bb)*a aababaababb,False
+b|(aa|bb)*a aababaaab,False
+b|(aa|bb)*a bbbbaabbb,False
+b|(aa|bb)*a bbabb,False
+b|(aa|bb)*a aabbaaaababbaa,False
+b|(aa|bb)*a aabbabbbbab,False
+b|(aa|bb)*a bbbabab,False
+b|(aa|bb)*a aaba,False
+(b(ab|a)(b|a))* babababbbaba,True
+(b(ab|a)(b|a))* babbbaababbaba,True
+(b(ab|a)(b|a))* baababb,True
+(b(ab|a)(b|a))* babbbaabaababa,True
+(b(ab|a)(b|a))* baabaabaababb,True
+(b(ab|a)(b|a))* babbbabababb,True
+(b(ab|a)(b|a))* babbababaababa,True
+(b(ab|a)(b|a))* baababababb,True
+(b(ab|a)(b|a))* baababbabbaa,True
+(b(ab|a)(b|a))* babababbaababa,True
+(b(ab|a)(b|a))* babbbaba,True
+(b(ab|a)(b|a))* baabaababbbabb,True
+(b(ab|a)(b|a))* baababbbaa,True
+(b(ab|a)(b|a))* baababbaababa,True
+(b(ab|a)(b|a))* babbbaa,True
+(b(ab|a)(b|a))* babbabbaa,True
+(b(ab|a)(b|a))* baabaababb,True
+(b(ab|a)(b|a))* babbbaabaababa,True
+(b(ab|a)(b|a))* babababababbaa,True
+(b(ab|a)(b|a))* baababbbabb,True
+(b(ab|a)(b|a))* babbbbab,False
+(b(ab|a)(b|a))* babbbb,False
+(b(ab|a)(b|a))* bababbabbbabba,False
+(b(ab|a)(b|a))* babbabbbbb,False
+(b(ab|a)(b|a))* babbb,False
+(b(ab|a)(b|a))* babbabbbb,False
+(b(ab|a)(b|a))* babbbbb,False
+(b(ab|a)(b|a))* babaaabbabaa,False
+(b(ab|a)(b|a))* babbaab,False
+(b(ab|a)(b|a))* babbabbaaba,False
+(b(ab|a)(b|a))* babba,False
+(b(ab|a)(b|a))* bababba,False
+(b(ab|a)(b|a))* baabababbabb,False
+(b(ab|a)(b|a))* baababbb,False
+(b(ab|a)(b|a))* bababaabbaa,False
+(b(ab|a)(b|a))* babaabaaabba,False
+(b(ab|a)(b|a))* baababbba,False
+(b(ab|a)(b|a))* babaabbb,False
+(b(ab|a)(b|a))* bababba,False
+(b(ab|a)(b|a))* baababaa,False
+((b*a|b)bb)* babbabbbbbbabb,True
+((b*a|b)bb)* abbbabbbbbabb,True
+((b*a|b)bb)* abbbabbbbbbabb,True
+((b*a|b)bb)* abbbbabbabbbbb,True
+((b*a|b)bb)* abbbbabbbbabb,True
+((b*a|b)bb)* bbbabbbabbbabb,True
+((b*a|b)bb)* babbbbabb,True
+((b*a|b)bb)* abbbbabbbbbabb,True
+((b*a|b)bb)* babbbbabbbbabb,True
+((b*a|b)bb)* bbabbabb,True
+((b*a|b)bb)* abbabbabbbbb,True
+((b*a|b)bb)* abbbabbbbbbabb,True
+((b*a|b)bb)* bbbabbabbbbabb,True
+((b*a|b)bb)* bbbabbabbbbabb,True
+((b*a|b)bb)* babbbbabbbbabb,True
+((b*a|b)bb)* bbabbabbbbbbbb,True
+((b*a|b)bb)* abbabbbbbbbabb,True
+((b*a|b)bb)* babbbbabb,True
+((b*a|b)bb)* abbbabbbbabb,True
+((b*a|b)bb)* babbabbbbbbabb,True
+((b*a|b)bb)* abbbbbabbbbabb,True
+((b*a|b)bb)* abbbbabbbbabb,True
+((b*a|b)bb)* bbabbabbbbabb,True
+((b*a|b)bb)* bbabbbbbabb,True
+((b*a|b)bb)* abbbbb,True
+((b*a|b)bb)* bbaa,False
+((b*a|b)bb)* bbbab,False
+((b*a|b)bb)* bbab,False
+((b*a|b)bb)* abbbbababb,False
+((b*a|b)bb)* babaaabb,False
+((b*a|b)bb)* baba,False
+((b*a|b)bb)* bbbaabbabbb,False
+((b*a|b)bb)* babbbaabb,False
+((b*a|b)bb)* bababbbba,False
+((b*a|b)bb)* bbbaaaabaa,False
+((b*a|b)bb)* bbbaba,False
+((b*a|b)bb)* babbbaa,False
+((b*a|b)bb)* baba,False
+((b*a|b)bb)* bbbaabaaabbb,False
+((b*a|b)bb)* bbaaaabb,False
+((b*a|b)bb)* abbbaaababbb,False
+((b*a|b)bb)* bbaaa,False
+((b*a|b)bb)* bbbabbba,False
+((b*a|b)bb)* bababaaaaaa,False
+((b*a|b)bb)* bbbaba,False
+((b*a|b)bb)* babbaaa,False
+((b*a|b)bb)* bbbaaaa,False
+b|((b|ba)b|a)* babababa,True
+b|((b|ba)b|a)* babbbabbaaa,True
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+b|((b|ba)b|a)* bbbabbaba,True
+b|((b|ba)b|a)* bbabbbabbabaa,True
+b|((b|ba)b|a)* babbbbabaaaa,True
+b|((b|ba)b|a)* babaabba,True
+b|((b|ba)b|a)* bbabbabbbababb,True
+b|((b|ba)b|a)* babaababbabaa,True
+b|((b|ba)b|a)* bababababb,True
+b|((b|ba)b|a)* bbaabbababbaba,True
+b|((b|ba)b|a)* babaaabb,True
+b|((b|ba)b|a)* bbabbbabbbaaa,True
+b|((b|ba)b|a)* babbab,True
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+b|((b|ba)b|a)* bbababa,True
+b|((b|ba)b|a)* bbabbbabbabaaa,True
+b|((b|ba)b|a)* bbbaba,True
+b|((b|ba)b|a)* bbababa,True
+b|((b|ba)b|a)* babbab,True
+b|((b|ba)b|a)* bbbab,True
+b|((b|ba)b|a)* babaaababa,True
+b|((b|ba)b|a)* babababa,True
+b|((b|ba)b|a)* abbbaabba,False
+b|((b|ba)b|a)* bbba,False
+b|((b|ba)b|a)* aaabbabaaaabba,False
+b|((b|ba)b|a)* babaaabaaaa,False
+b|((b|ba)b|a)* bbbababbababb,False
+b|((b|ba)b|a)* babb,False
+b|((b|ba)b|a)* bbbaaabaabbaa,False
+b|((b|ba)b|a)* bbababb,False
+b|((b|ba)b|a)* bbbbaabaaaaa,False
+b|((b|ba)b|a)* aababbbbbbaa,False
+b|((b|ba)b|a)* bbbaaaaab,False
+b|((b|ba)b|a)* aaaaaabaa,False
+b|((b|ba)b|a)* abaab,False
+b|((b|ba)b|a)* babbabb,False
+b|((b|ba)b|a)* babbaaba,False
+b|((b|ba)b|a)* babbbbbbbbaa,False
+b|((b|ba)b|a)* bbaabaabaa,False
+b|((b|ba)b|a)* aaabaaabbbab,False
+b|((b|ba)b|a)* aaaabaa,False
+b|((b|ba)b|a)* abaaaba,False
+((a|b)ab|aa)* aabaa,True
+((a|b)ab|aa)* babaaaaaab,True
+((a|b)ab|aa)* babaabaaaabaa,True
+((a|b)ab|aa)* babaabbab,True
+((a|b)ab|aa)* babbabaababaab,True
+((a|b)ab|aa)* babaaaaaaaaaa,True
+((a|b)ab|aa)* babbabbabaab,True
+((a|b)ab|aa)* babbabbabbabaa,True
+((a|b)ab|aa)* babaaaab,True
+((a|b)ab|aa)* babbabbabaaaa,True
+((a|b)ab|aa)* babbabaaaab,True
+((a|b)ab|aa)* babaaaaaab,True
+((a|b)ab|aa)* babbabaabaab,True
+((a|b)ab|aa)* babaaaaaaaaaa,True
+((a|b)ab|aa)* babbabbabbabaa,True
+((a|b)ab|aa)* aaaababaaaa,True
+((a|b)ab|aa)* babbabbabaaaa,True
+((a|b)ab|aa)* aabbabbabaabaa,True
+((a|b)ab|aa)* babaaaabaab,True
+((a|b)ab|aa)* babaaaaaaaaaa,True
+((a|b)ab|aa)* aabbabaaaabaab,True
+((a|b)ab|aa)* babbabbabaab,True
+((a|b)ab|aa)* babaaaabaab,True
+((a|b)ab|aa)* babaabaabbabaa,True
+((a|b)ab|aa)* babbabbabaab,True
+((a|b)ab|aa)* babbabbabaaaa,True
+((a|b)ab|aa)* babaaaabbab,True
+((a|b)ab|aa)* aababbaabb,False
+((a|b)ab|aa)* aaaabaaab,False
+((a|b)ab|aa)* aabaaabb,False
+((a|b)ab|aa)* aabaaabbbba,False
+((a|b)ab|aa)* aaba,False
+((a|b)ab|aa)* aabbbaaa,False
+((a|b)ab|aa)* bababbab,False
+((a|b)ab|aa)* aaaabababbb,False
+((a|b)ab|aa)* aabbbbaaaab,False
+((a|b)ab|aa)* aabbbbbbab,False
+((a|b)ab|aa)* aabaaababbbba,False
+((a|b)ab|aa)* aaaababbbaaa,False
+((a|b)ab|aa)* aababa,False
+((a|b)ab|aa)* aabaabbbaaaab,False
+((a|b)ab|aa)* aabababbbab,False
+((a|b)ab|aa)* aabbaabbaaaaa,False
+((a|b)ab|aa)* aababbb,False
+((a|b)ab|aa)* aabbababb,False
+((a|b)ab|aa)* bababbbababba,False
+((a|b)ab|aa)* aabbaab,False
+b|(a(a|(b|a)b))* abbaabaaaa,True
+b|(a(a|(b|a)b))* aaabbabbabbaa,True
+b|(a(a|(b|a)b))* abbaaaabaa,True
+b|(a(a|(b|a)b))* abbabbabbaaaa,True
+b|(a(a|(b|a)b))* abbabbaa,True
+b|(a(a|(b|a)b))* aababbaaaab,True
+b|(a(a|(b|a)b))* abbabbaaaa,True
+b|(a(a|(b|a)b))* abbaaaaaaaa,True
+b|(a(a|(b|a)b))* abbaaaaaab,True
+b|(a(a|(b|a)b))* abbabbabbaaaa,True
+b|(a(a|(b|a)b))* aabaababbaaaa,True
+b|(a(a|(b|a)b))* abbaabaaaa,True
+b|(a(a|(b|a)b))* abbabbaaaa,True
+b|(a(a|(b|a)b))* abbabbabbaaaa,True
+b|(a(a|(b|a)b))* aaaababbaaaa,True
+b|(a(a|(b|a)b))* aaabbabbabbaa,True
+b|(a(a|(b|a)b))* aaaaaaabbaaaab,True
+b|(a(a|(b|a)b))* aaabbaaaaaaaab,True
+b|(a(a|(b|a)b))* aaabbabbaaaaaa,True
+b|(a(a|(b|a)b))* aaaababbaaaa,True
+b|(a(a|(b|a)b))* abbaaabbaa,True
+b|(a(a|(b|a)b))* abbaab,True
+b|(a(a|(b|a)b))* abbaaabb,True
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+b|(a(a|(b|a)b))* abbaabaaaa,True
+b|(a(a|(b|a)b))* abbaaaabaaaab,True
+b|(a(a|(b|a)b))* aababbaa,True
+b|(a(a|(b|a)b))* abbaaaaab,False
+b|(a(a|(b|a)b))* aaababbbabaaba,False
+b|(a(a|(b|a)b))* aaabaab,False
+b|(a(a|(b|a)b))* aabab,False
+b|(a(a|(b|a)b))* aabbabbbaba,False
+b|(a(a|(b|a)b))* aababaaabbbbb,False
+b|(a(a|(b|a)b))* aabababaab,False
+b|(a(a|(b|a)b))* abbba,False
+b|(a(a|(b|a)b))* aababab,False
+b|(a(a|(b|a)b))* aabbbaaaaa,False
+b|(a(a|(b|a)b))* aabab,False
+b|(a(a|(b|a)b))* aabbababbbab,False
+b|(a(a|(b|a)b))* aaabbabbbbbaaa,False
+b|(a(a|(b|a)b))* abbbaaa,False
+b|(a(a|(b|a)b))* aaabaa,False
+b|(a(a|(b|a)b))* abbbab,False
+b|(a(a|(b|a)b))* abbbaababa,False
+b|(a(a|(b|a)b))* aaaabbabaaabba,False
+b|(a(a|(b|a)b))* aabbabbaabaa,False
+b|(a(a|(b|a)b))* abbabaaaabaaaa,False
+b|(a(a|(b|a)b))* aaabababbabbab,False
+(a(ab|a))*|ab aabaaaab,True
+(a(ab|a))*|ab aaaabaab,True
+(a(ab|a))*|ab aaaabaaaaaaaa,True
+(a(ab|a))*|ab aabaaaabaaaaaa,True
+(a(ab|a))*|ab aabaaaaaabaab,True
+(a(ab|a))*|ab aabaab,True
+(a(ab|a))*|ab aabaaaabaabaa,True
+(a(ab|a))*|ab aaaaaaaabaab,True
+(a(ab|a))*|ab aabaa,True
+(a(ab|a))*|ab aaaaaabaaaab,True
+(a(ab|a))*|ab aabaabaabaaaa,True
+(a(ab|a))*|ab aabaabaaaaaaaa,True
+(a(ab|a))*|ab aabaabaabaaaa,True
+(a(ab|a))*|ab aaaaaabaaaaaab,True
+(a(ab|a))*|ab aabaaaaaab,True
+(a(ab|a))*|ab aabaaaaaaaabaa,True
+(a(ab|a))*|ab aabaabaaaaaa,True
+(a(ab|a))*|ab aaaaaabaabaab,True
+(a(ab|a))*|ab aabaabaaaaaa,True
+(a(ab|a))*|ab aaaabaabaaaab,True
+(a(ab|a))*|ab aaabaa,False
+(a(ab|a))*|ab aaababab,False
+(a(ab|a))*|ab aaabaabaabbb,False
+(a(ab|a))*|ab aabbaba,False
+(a(ab|a))*|ab aabbaaabbba,False
+(a(ab|a))*|ab aaaaababbbbbaa,False
+(a(ab|a))*|ab aabbbbabab,False
+(a(ab|a))*|ab aaaaabbaaaab,False
+(a(ab|a))*|ab aaabbaaaba,False
+(a(ab|a))*|ab aabaaaaab,False
+(a(ab|a))*|ab aaab,False
+(a(ab|a))*|ab aabbababbbaab,False
+(a(ab|a))*|ab aabaabb,False
+(a(ab|a))*|ab aaaabbbbababab,False
+(a(ab|a))*|ab aaba,False
+(a(ab|a))*|ab aabbaaabbbbaa,False
+(a(ab|a))*|ab aaaabbbabbabba,False
+(a(ab|a))*|ab aababab,False
+(a(ab|a))*|ab aaaaaabab,False
+(a(ab|a))*|ab aabaabbabbbb,False
+((b|a)(b|a)a|b)* babaababaabbb,True
+((b|a)(b|a)a|b)* baabbbbabba,True
+((b|a)(b|a)a|b)* aaabaaaaabbab,True
+((b|a)(b|a)a|b)* aaabbbaaa,True
+((b|a)(b|a)a|b)* ababababb,True
+((b|a)(b|a)a|b)* aaabbaaaaa,True
+((b|a)(b|a)a|b)* baaaaba,True
+((b|a)(b|a)a|b)* abaababaaaabab,True
+((b|a)(b|a)a|b)* baabb,True
+((b|a)(b|a)a|b)* ababababb,True
+((b|a)(b|a)a|b)* aaaaaabbaabbab,True
+((b|a)(b|a)a|b)* abaaaabababb,True
+((b|a)(b|a)a|b)* aaaaaabb,True
+((b|a)(b|a)a|b)* aaababaabab,True
+((b|a)(b|a)a|b)* abababa,True
+((b|a)(b|a)a|b)* aaaaaabb,True
+((b|a)(b|a)a|b)* baabbbaaabaaaa,True
+((b|a)(b|a)a|b)* bababbabbab,True
+((b|a)(b|a)a|b)* baaaababb,True
+((b|a)(b|a)a|b)* baaaba,True
+((b|a)(b|a)a|b)* baababb,False
+((b|a)(b|a)a|b)* babaabaaab,False
+((b|a)(b|a)a|b)* babaabaaababb,False
+((b|a)(b|a)a|b)* baaaab,False
+((b|a)(b|a)a|b)* baaaab,False
+((b|a)(b|a)a|b)* babba,False
+((b|a)(b|a)a|b)* babbabababaaaa,False
+((b|a)(b|a)a|b)* baababb,False
+((b|a)(b|a)a|b)* baaaaabaaaab,False
+((b|a)(b|a)a|b)* babbba,False
+((b|a)(b|a)a|b)* ababab,False
+((b|a)(b|a)a|b)* babababababb,False
+((b|a)(b|a)a|b)* baaaab,False
+((b|a)(b|a)a|b)* baabaaaab,False
+((b|a)(b|a)a|b)* baababb,False
+((b|a)(b|a)a|b)* ababa,False
+((b|a)(b|a)a|b)* baaaab,False
+((b|a)(b|a)a|b)* babbbbaaababaa,False
+((b|a)(b|a)a|b)* abababbb,False
+((b|a)(b|a)a|b)* baaaabbbab,False
+((b|a)(b|a)a|b)* babbab,False
+((b|a)(b|a)a|b)* babaabbbab,False
+((b|a)(b|a)a|b)* ababab,False
+((b|a)(b|a)a|b)* baaaaababaabbb,False
+((b|a)(b|a)a|b)* baaaabaababa,False
+a((a|b)ab*)* aaababba,True
+a((a|b)ab*)* aaaaaaabbababb,True
+a((a|b)ab*)* ababbbaaa,True
+a((a|b)ab*)* ababbbabbaab,True
+a((a|b)ab*)* aaaaaaabb,True
+a((a|b)ab*)* abaaaaaaabaaaa,True
+a((a|b)ab*)* ababbaaa,True
+a((a|b)ab*)* aaaaababba,True
+a((a|b)ab*)* abaaabaaaabb,True
+a((a|b)ab*)* aaabbaabbba,True
+a((a|b)ab*)* ababbaababaa,True
+a((a|b)ab*)* ababbbbbaaaaa,True
+a((a|b)ab*)* abaaabababa,True
+a((a|b)ab*)* ababbaaabaaa,True
+a((a|b)ab*)* aaabbabbbaaba,True
+a((a|b)ab*)* aaaaababbabb,True
+a((a|b)ab*)* aaabbaa,True
+a((a|b)ab*)* aaabbbaaabbbaa,True
+a((a|b)ab*)* aaabbaba,True
+a((a|b)ab*)* aaabbabaaa,True
+a((a|b)ab*)* aaaaaaaabb,False
+a((a|b)ab*)* aaaaaabaaa,False
+a((a|b)ab*)* aaaabaaba,False
+a((a|b)ab*)* aaaabbbaa,False
+a((a|b)ab*)* abaabaabaabaa,False
+a((a|b)ab*)* aaaabbaba,False
+a((a|b)ab*)* aaaabbbabaaabb,False
+a((a|b)ab*)* abaababbbb,False
+a((a|b)ab*)* abaaaaaaaabba,False
+a((a|b)ab*)* aaaaaaaaaaba,False
+a((a|b)ab*)* abaaaaaab,False
+a((a|b)ab*)* aaaaaaaababbbb,False
+a((a|b)ab*)* aaaababa,False
+a((a|b)ab*)* abaaaaaab,False
+a((a|b)ab*)* aaaababbbaaa,False
+a((a|b)ab*)* abaaaabbaabbb,False
+a((a|b)ab*)* aaaabbbaba,False
+a((a|b)ab*)* aaaababbbbbbab,False
+a((a|b)ab*)* abaaaabbabba,False
+a((a|b)ab*)* abaaaab,False
+a((a|b)ab*)* aaaababaaabba,False
+b|((a|b|ab)a)* baababababaaa,True
+b|((a|b|ab)a)* bababababaaba,True
+b|((a|b|ab)a)* baababababaaa,True
+b|((a|b|ab)a)* baaabaaaaba,True
+b|((a|b|ab)a)* babababaabaaba,True
+b|((a|b|ab)a)* baabaaaaaba,True
+b|((a|b|ab)a)* baabaaaabaaaba,True
+b|((a|b|ab)a)* baaaba,True
+b|((a|b|ab)a)* bababaaaba,True
+b|((a|b|ab)a)* babaaaaaaba,True
+b|((a|b|ab)a)* baaaaabaaa,True
+b|((a|b|ab)a)* babaaaaba,True
+b|((a|b|ab)a)* babaabababa,True
+b|((a|b|ab)a)* baaaaabaaaaa,True
+b|((a|b|ab)a)* baabaaabaaaba,True
+b|((a|b|ab)a)* babababaabaaba,True
+b|((a|b|ab)a)* bababaaaba,True
+b|((a|b|ab)a)* baaaabaaaaa,True
+b|((a|b|ab)a)* babaaabaaa,True
+b|((a|b|ab)a)* baaabaaaaba,True
+b|((a|b|ab)a)* baaaaaba,True
+b|((a|b|ab)a)* babaaaaba,True
+b|((a|b|ab)a)* baaaababaaaaba,True
+b|((a|b|ab)a)* aababbbab,False
+b|((a|b|ab)a)* aaabbbaababa,False
+b|((a|b|ab)a)* babbbbab,False
+b|((a|b|ab)a)* ababbabaabbbb,False
+b|((a|b|ab)a)* baaabb,False
+b|((a|b|ab)a)* ababbba,False
+b|((a|b|ab)a)* baababb,False
+b|((a|b|ab)a)* aaaaabaabb,False
+b|((a|b|ab)a)* baabaaabb,False
+b|((a|b|ab)a)* babaab,False
+b|((a|b|ab)a)* abaaaaabbbaa,False
+b|((a|b|ab)a)* babbbbba,False
+b|((a|b|ab)a)* aabbbaabbbb,False
+b|((a|b|ab)a)* abababbaaaabba,False
+b|((a|b|ab)a)* baaabb,False
+b|((a|b|ab)a)* aaabbbaaaaaab,False
+b|((a|b|ab)a)* babaab,False
+b|((a|b|ab)a)* bababbbaababa,False
+b|((a|b|ab)a)* bababaa,False
+b|((a|b|ab)a)* baaabbb,False
+b|((a|b|ab)a)* baabbbaba,False
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+a|((bb|a)a|b)* aababaaabaa,False
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+(b(a|(b|a)b)a)* bbbabababbba,True
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+(b(a|(b|a)b)a)* baabbbabababaa,True
+(b(a|(b|a)b)a)* bbbabaabbbabaa,True
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+(b(a|(b|a)b)a)* bbbaa,False
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+(b(a|(b|a)b)a)* bbbabbabbbbbbb,False
+(b(a|(b|a)b)a)* baabbab,False
+(b(a|(b|a)b)a)* babbaabaabbbba,False
+(b(a|(b|a)b)a)* babaaab,False
+(b(a|(b|a)b)a)* bbbaabbbbbb,False
+(b(a|(b|a)b)a)* baabaabbbb,False
+(b(a|(b|a)b)a)* bbbabab,False
+(b(a|(b|a)b)a)* baabbaabbabb,False
+(b(a|(b|a)b)a)* babbb,False
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+((aaa)*b)*a bbaaaaaababaa,False
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+(bb|b)(b(a|b))* bbbbabbbbbabb,True
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+(b|(aab|a)a)* bbaabbbaaab,False
+(b|(aab|a)a)* aababa,False
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+((bb|a)(b|ba))* abbbbabbab,False
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+((bb|a)(b|ba))* bbbbbaabba,False
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+((bb|a)(b|ba))* bbbabbaababba,False
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