6	invent	5	venti
5	venin	4	vint
4	vine	4	vent
4	vein	4	tine
4	tein	4	nite
4	nine	4	nevi
3	vin	3	vie
3	vet	3	tin
3	tie	3	ten
3	nit	3	net
3	inn	2	ti
2	te	2	ne
2	it	2	in
2	et	2	en