bo-bo bo-ho boboc bobr bocho bocor bogor bohor booch booco borbo borch borgh borgo boro- boroo borro brobo broch brogh brrrr c-cor ccccc choco choor chor- choro co-bo co-co cocc- cocco cohob cohog cohoo cooch coorg corbo coro- croco go-go go-oo gobbo gocco gochh gocoo gogro gohog gohor goobo gooch goooh gorgo grogg grrrr h-cho hbogo hcooh hhhhh ho-ho ho-oh hobor hobro hocco hooch horch horro hroch o-r-b obhor oboro ochro ocr-b ogogo oh-oh ohchr ohrob ooooh ooooo orobo oroch oroco orrgo r-co- ro-ro robbo robo- robor rocco rocor rogho rohob