bbbb bbch bbci bcbc bcbg bccc bcci bhcc bhog bhoi bibb bibi bibo bicc bicg bich bici bico bigb bigc bigg bigo bihi bio- bioc biog bioi bobb bobi bobo boch boco bogg bogh bogi bogo boho boi- boii boob booc boog booh c-bo cbbc cbcc cbgb ccbc cccb cccc ccci ccgc ccic ccii ccob ccoc cgcc cgcg chch chci chgb chib chic chig chih choc choh choi choo cibc cibi cibo cicc cich cici cico cigi ciii ciob cobb cobh cobi cobo coch coco cogh cogi cogo coho coob cooh gbbo gc-c gcbc gccc gcic gcii gggg gghg ghib ghoi gibb gibh gigg gigi gigo giog gioi gobi gobo goch gogh gogi gogo gohb goog gooi h-ii hbic hbio hboc hcbc hccb hccc hcch hcgh hchi hggc hhgg hhhh hi-c hibi hicc hich hico high higi hihc hihi hiho hiob hioc hobo hoch hogg hogh hogi hogo hoho i-go icbc iccb iccc icci icco icgc ichc ichi icho icoc igbc igbo igcc igoo ihcc ihob iiii iiio iioi iioo iobi iocg ioci ioii ioio iooi iooo obbo oboi ocbc occc occi ochi ogb oggi oghi ogog ogoi ohcc ohhi ohho ohio ohob ohoh oici oigo oiii oobi ooho oooh oooo