b-r-k bbook bcock bo-bo bobko boboc bobok bobr bocom bocor bokko bokok bokor bombo boock booco booko boomb borbo borck borko bormo boro- borok borom boroo borro brcko brmmm brobo brock brom- bromo brook broom brrrr c-cor ccccc co-bo co-co cocc- cocco cocom cokk- combo comco commo commr coomb corbo corm- cormo coro- crock croco cromb cromo crook croom k-rob ko-ko kokko kokor kombo korbo korck korom koror korro krock kromo mboro mccoo mmccc mmmcc mmmmm mobor mobro mocco mock- mokko mokro mombo moock mookk mooro morbo mormo moroc moror morro mrmom mrorr o-r-b obock oboro obrok obrom ockro ocr-b okobo okoc okoro omoro ooooo orbom orkom ormoc orobo oroco oromo r-co- ro-ro robbo robo- robor rocco rocko rocor rokkk