bhour bo-bo bo-ho bobov bobr bogor bogu bogur bohor booru borbo borgh borgo borgu boro- boroo borou borov borro borvo bough bourg brobo brogh brrrr brugg brugh bugoo buoho burgh burgo burgu buroo burov burro burru ghour ghubb go-go go-oo gobbo gogro gohog gohor gohur goobo goooh gorgo goruh gough gouv- grgur grogg grrrr grubb gubbo gubru guroo gurov gurro gurur hbogo hhhhh hhour ho-ho ho-oh hobor hobro hobub horro horru hough hrhov hu-go hubur huggo huhuh huuru o-r-b obhor oboro obrov oghur ogogo ogugu oh-oh ohour ohrob ooooh ooooo oovoo orgov orobo orrgo oruro ouoro ro-ro robbo robo- robor robur rogho rogov rohob rohov rohru rorbu rough rubor rughh ruhub ubobo ugro- ugrug uh-oh uh-uh uhhoh uhhuh uhuru uroob urour urubu uuuuu uvrou v-bob v-bor voobu vooru vrbov