7	attract	5	tract
5	tatar	5	carat
5	attar	4	tatt
4	tata	4	tart
4	tara	4	tact
4	rata	4	cart
4	acta	3	tra
3	tat	3	tar
3	rat	3	cat
3	car	3	att
3	art	3	arc
3	act	2	ta
2	at	2	ar
2	aa