6	reflux	5	lurex
4	rule	4	luxe
4	lure	4	furl
4	fuel	4	flux
4	flue	4	flex
3	rue	3	rex
3	ref	3	lux
3	lur	3	lex
3	leu	3	fur
3	flu	3	feu
3	fer	3	erf
3	elf	2	xu
2	re	2	fu
2	fe	2	ex
2	er	2	el
2	ef