b-r-k bbook bhooi bhook bibbo bibio bibri bihor bikok bioko bizzi bizzo bo-bo bo-ho bobbi bobik bobko bobok bobr bobri bohok bohor bohri boiro bokko bokok bokor booki booko bookz borbo borik borio borko boro- borok boroo borro bozok bozoo brizo brizz brobo brook brrrr h-bio h-iib hhhhh hi-hi hibhi hibob hibor hibri hikki hikoi hiroi hiroo ho-ho ho-oh hobor hobro hokki hoori horii horio horki horro ibibo ibook ibrik iiiii ikobo ikoro ioooi ioooo iorio iriki irobo iroko irori izori izrok k-rob khobi khori khoro ki-hi kibbi kibbo kibi- kibor kiiki kikki kikko kikoi kioko kirki kizhi ko-ko kobri kohir kohki koiri kokir kokki kokko kokoi kokor kooki koori koozh korbo korki koror korri korro korzh kozki kribi o-r-b obhor oboro obrok obzor oh-oh oh-ok ohiki ohrio ohrob oiko- okobo okoho okoki okoro ooioo ooooh ooooo oribi orobo ozoir ozoro rhiz- rhizo ribbi ribo- rikhi rikki rizzi rizzo ro-ro robbi robbo robik robo- robor rohob rohri rokki rokkk roohi rookh rorik roriz rozki rozzi zibib zikri zirik zizik zizki zizoo zizzi zohor zohri zokor zorbo zorki zorko zorro zorzi zzzzz