7	opinion	6	pinion
5	pinon	5	onion
5	inion	4	poon
4	pion	4	noon
4	noni	3	poo
3	poi	3	pin
3	ono	3	noo
3	non	3	nip
3	ion	3	inn
2	po	2	pi
2	op	2	oo
2	on	2	oi
2	no	2	io
2	in