7	noniron	6	ronion
5	ronin	5	onion
5	ninon	4	nori
4	noon	4	noni
4	noir	4	iron
4	inro	3	roo
3	rin	3	ono
3	nor	3	noo
3	non	3	ion
3	inn	2	or
2	oo	2	on
2	oi	2	no
2	io	2	in