bbbb bibb bibi bibo biko bimo bio- bioi bmmi bobb bobi bobo boi- boii boim boki boko bomb bomi boob book boom ibbm ibim iiii iiio iioi iioo ikki ikko ikmo ikom ikoo imbi immi immo imok iobi ioii ioio ioko iomo iooi iooo kbbb kbbi kbbk kbbm kbbo kbib kbik kbim kbio kbkb kbkk kbko kbmb kbmi kbmo kbob kboi kbok kboo kibb kibi kibo kiii kiik kiki kikk kiko kimb kimi kimm kimo kioi kiok kioo kkbb kkbi kkbo kkik kkim kkkk kkmi kkmk kkmo kkob kkoo kmbi kmkk kmko kmmk kmmm kmmo kmob kmok kmom kobb kobi kobk kobo koii kokb koki kokk koko komb komi komo koob kooi kook kooo mbim mbio miii miio miki mikk miko mim- mimi mimo mio- mmii mmmm mobb mobi mobo moii moio moki moko momi momo moob mook obbo obkb oboi obok oiii oiko oimb okko okmo okok okom ombo omim omio omo- omoi omoo oobi oooo