7	offence	6	coffee
5	fence	4	once
4	fone	4	cone
4	coff	3	one
3	off	3	nef
3	nee	3	fon
3	foe	3	fen
3	fee	3	eon
3	eff	3	eco
3	con	3	cee
2	on	2	of
2	oe	2	no
2	ne	2	fe
2	eo	2	en
2	ef	2	ee