bbook bckdk bcock bo-bo bobko boboc bobok bodd- bodoc bokko bokod bokok boock booco booko bouck boudu bouko bucco bucko bucku buddu budko budoc bukk- ccccc co-bo co-co cocc- cocco codco codo cokk- couco cubo- cubub cucuk cuoco dc-uk ddddd do-do dobok dodoo dokdo dokuo doodo dooku douck du-ku dubbo dubuc duddo dudok dudou duduc duduk dukku k-b-d ko-ko kobuk kodok kokko kokou koudo kubok kucuk kudou kukko kukok obock obodo obudu odudu okobo okoc okubo okuku ooooo u-dub ubobo ukobu ukodo uuuuu