bo-bo boboc bobr bocom bocor bombo booco boomb borbo bormo boro- borom boroo borro brmmm brobo brom- bromo broom brrrr c-cor ccccc co-bo co-co cocc- cocco cocom combo comco commo commr coomb corbo corm- cormo coro- croco cromb cromo croom mboro mccoo mmccc mmmcc mmmmm mobor mobro mocco mombo mooro morbo mormo moroc moror morro mrmom mrorr o-r-b oboro obrom ocr-b omoro ooooo orbom ormoc orobo oroco oromo r-co- ro-ro robbo robo- robor rocco rocor