1
a		0
	a	0
a	a	1
ab	AB	1
ab	AC	0
ab	a	0
ab	b	0
ab	abb	0
*		1
*	a	1
*	abc	1
a*		0
a*	a	1
a*	ab	1
a*	b	0
a*	ba	0
*a		0
*a	a	1
*a	ba	1
*a	b	0
*a	ab	0
a*b		0
a*b	a	0
a*b	b	0
a*b	ab	1
a*b	axb	1
a*b	ac	0
a**b		0
a**b	a	0
a**b	b	0
a**b	ab	1
a**b	axb	1
a**b	ac	0
a*bc*d	abcd	1
a*bc*d	axbxbcyd	1
a*bc*d	axbcyd	1
a*bc*d	acbd	0
a*bc*d	abxcd	0