bdoor bo-bo boboc bobr bocor bodd- bodoc bodor booco boord borbo bordo boro- borod boroo borro brobo brodd brodo brood brrrr c-cor ccccc co-bo co-co cocc- cocco codco codo coord corbo coro- corod croco crodo crood d-rod ddddd do-do dobro dodoo dodro doodo drbob drobo drood o-r-b obodo oboro ocr-b ooooo ordoc ordro orobo oroco orodo r-co- ro-ro robbo robo- robor rocco rocor rodbo rodoc rodor