101 0@a[bcd]*dcdcde@adcdcde
102 1@a[bcd]+dcdcde@adcdcde
105 0@[A-Za-z_][A-Za-z0-9_]*@alpha
106 0@^a(bc+|b[eh])g|.h$@abh
107 0@(bc+d$|ef*g.|h?i(j|k))@effgz
108 0@(bc+d$|ef*g.|h?i(j|k))@ij
109 1@(bc+d$|ef*g.|h?i(j|k))@effg
110 1@(bc+d$|ef*g.|h?i(j|k))@bcdd
111 0@(bc+d$|ef*g.|h?i(j|k))@reffgz
112 1@((((((((((a))))))))))@-
113 0@(((((((((a)))))))))@a
114 1@multiple words of text@uh-uh
115 0@multiple words@multiple words, yeah
122 0@(....).*\1@beriberi