bbbb bbch bbci bcbc bccc bcci bhcc bhoi bibb bibi bibo bicc bich bici bick bico bihi bikh biko bio- bioc bioi bobb bobi bobo boch bock boco boho boi- boii boki boko boob booc booh book c-bo cbbc cbcc cbko ccbc cccb cccc ccci ccic ccii ccob ccoc chch chci chib chic chih chik chkb choc choh choi chok choo cibc cibi cibo cicc cich cici cico ciii ciko ciob ckbc ckbi ckch ckck ckco ckob ckoc ckoi ckoo cobb cobh cobi cobo coch cock coco coho cok- coko coob cooh cook h-ii hbic hbio hboc hcbc hccb hccc hcch hchi hhhh hi-c hibi hicc hich hick hico hihc hihi hiho hiki hiob hioc hkcc hobo hoch hock hoho hoik hoki hoko hook icbc iccb iccc icci icco ichc ichi icho icoc ihcc ihob iiii iiio iioi iioo ikki ikko ikoo iobi ioci ioii ioio ioko iooi iooo k-ci kbbb kbbc kbbi kbbk kbbo kbcb kbch kbci kbck kbco kbhb kbhc kbhh kbhi kbib kbic kbik kbio kbkb kbkk kbko kbob kboc kboi kbok kboo kcbc kcbi kcbk kccb kccc kcci kcck kchh kchi kchk kcho kcic kcii kckc kckk kcko kcob kcoh khbc khcb khcc khch khck khhk khho khic khii khio khki khkk khob khoc khoi khok kibb kibc kibi kibo kicb kicc kick kihc kihh kihi kihk kiho kiic kiii kiik kikc kiki kikk kiko kioc kioh kioi kiok kioo kkbb kkbi kkbo kkcb kkch kkci kkck kkco kkhb kkhh kkhi kkhk kkic kkik kkkk kkob kkoh kkoo kobb kobc kobi kobk kobo kocb koch koci kock kohh kohi koho koii kokb kokc kokh koki kokk koko koob kooc kooi kook kooo obbo obkb oboi obok ocbc occc occi ochi ohcc ohhi ohho ohio ohob ohoh ohok oici oick oiii oiko okic okko okok oobi ooho oooh oooo