8	furfuran	6	furfur
5	furan	5	fnarr
4	unau	4	ruff
4	raff	4	nuff
4	naff	4	fufu
4	faun	3	urn
3	uan	3	run
3	ran	3	fur
3	fun	3	far
3	fan	3	arf
3	aff	2	un
2	nu	2	na
2	fu	2	fa
2	ar	2	an