b-boy b-r-k bbook bo-bo bobby bobko bobok bobr bobry bokko bokok bokor booby booko booky booyo borbo borko borky boro- borok boroo borro boyko brobo broby brook brrrr bryo- by-by k-rob ko-ko kokko kokor kokry kooky korbo koror korro korry koryo kryo- kryry kyoko o-r-b oboro obory obrok okobo okoro okoyo ooooo orobo oyoko oyoor ro-ro robbo robby robo- robor roboy rokkk rokky rooky royko rybky ryoko yo-yo yobbo yobro yokoo yorro