7	araroba	6	arroba
5	arbor	4	roar
4	rara	4	orra
4	bora	4	boar
3	rob	3	orb
3	ora	3	oba
3	oar	3	brr
3	bro	3	bra
3	boa	3	bar
3	baa	3	arb
3	aba	2	or
2	bo	2	ba
2	ar	2	ab
2	aa