b-r-k bbook bhogi bhooi bhook bibbo bibio bibri big-i bigig bigoo bihor bikok bioko birgi bo-bo bo-ho bobbi bobik bobko bobok bobr bobri bogor bohok bohor bohri boigh boiro bokko bokok bokor booki booko borbo borgh borgo borik borio borko boro- borok boroo borro brigg brigi brobo brogh brook brrrr gboko ggobi ghori gibbi gibi- gikii gikor girih girik go-go go-oo gobbi gobbo gobhi gobig gobio gobir gogoi gogok gogro gohir gohog gohor goibo goobi goobo gooik goooh gorgo gorir gorki grigg grogg grokk grook grrrr h-bio h-iib hbogo hhhhh hi-hi hibhi hibob hibor hibri higgi highb higig higor hikki hikoi hiroi hiroo ho-ho ho-oh hobor hobro hoigh hokki hoori horii horio horki horro ibibo ibogo ibook ibrik iggri igigi igrok iiiii ikbkg ikobo ikoro ioooi ioooo iorio iriki irobo iroko irori k-rob khobi khori khoro ki-hi kibbi kibbo kibi- kibor kigio kiiki kikki kikko kikoi kioko kirgi kirki ko-ko kobri koghb kogho kogri kogro kohir kohki koigi koiri kokir kokki kokko kokoi kokor koogi kooki koori korbo korgi korki koror korri korro kribi krogh krohg o-r-b obhor oboro obrok ogiri ogogo oh-oh oh-ok ohiki ohrio ohrob oiko- okobo okoho okoki okoro okrog ooioo ooooh ooooo oribi origi origo orobo orrgo ribbi ribo- rig-i righi rigio rigor rikhi rikki ro-ro robbi robbo robik robo- robor rogho rogoi rohob rohri rokki rokkk roohi rookh rorik