E	(ab|a)b*c		abc		(0,3)(0,2)
E	((a)(b)c)(d)		abcd		(0,4)(0,3)(0,1)(1,2)(3,4)
BE	[A-Za-z_][A-Za-z0-9_]*	alpha		(0,5)
E	^a(bc+|b[eh])g|.h$	abh		(1,3)
E	(bc+d$|ef*g.|h?i(j|k))	effgz		(0,5)(0,5)
E	(bc+d$|ef*g.|h?i(j|k))	ij		(0,2)(0,2)(1,2)
E	(bc+d$|ef*g.|h?i(j|k))	reffgz		(1,6)(1,6)
E	(((((((((a)))))))))	a		(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)(0,1)
BE	multiple words		multiple words yeah	(0,14)
E	(.*)c(.*)		abcde		(0,5)(0,2)(3,5)