b-r-k bbook bcock bhook bo-bo bo-ho bobko boboc bobok bobr bochk bocho bocor bohok bohor bokko bokok bokor booch boock booco booko borbo borch borck borko boro- borok boroo borro brcko brobo broch brock brook brrrr c-cor ccccc chock choco chokh choko chook choor chor- chork choro co-bo co-co cocc- cocco cohob cohoo cokk- cooch corbo coro- crock croco crook h-cho hcooh hhhhh ho-ho ho-oh hobor hobro hocco hooch horch horro hroch k-rob khoro ko-ko kokko kokor korbo korck koror korro krock o-r-b obhor obock oboro obrok ochro ockro ocr-b oh-oh oh-ok ohchr ohrob okcho okobo okoc okoho okoro ooooh ooooo orobo oroch oroco r-co- ro-ro robbo robo- robor rocco rocko rocor rohob rokkk rookh