5	force	4	orfe
4	froe	4	fore
4	corf	4	core
4	cero	3	roe
3	roc	3	reo
3	ref	3	rec
3	orf	3	ore
3	orc	3	oer
3	fro	3	for
3	foe	3	fer
3	erf	3	eco
3	cor	2	re
2	or	2	of
2	oe	2	fe
2	er	2	eo
2	ef