8	combobox	7	boombox
5	coomb	5	combo
4	moob	4	mobo
4	comb	4	cobb
4	boom	4	boob
4	bomb	3	oxo
3	oom	3	moo
3	moc	3	mob
3	cox	3	coo
3	cob	3	box
3	boo	3	bob
2	ox	2	oo
2	om	2	mo
2	bo