bbbb bbci bcbc bcbg bccc bcci bcoz bcvo bibb bibi bibo bicc bicg bici bico bigb bigc bigg bigo bio- bioc biog bioi bivi bizz bobb bobi bobo boco bogg bogi bogo boi- boii boob booc boog booz bovi bovo bozi bozo bziv bzzz c-bo cbbc cbcc cbgb cbvb cbvg ccbc cccb cccc ccci cccv ccgc ccic ccii cciv ccob ccoc ccvi ccvo cgcc cgcg cibc cibi cibo cicc cici cico cigi ciii ciob civc civo cobb cobi cobo coco cogi cogo coob covo cozi cozz cvcc cvii gbbo gc-c gcbc gccc gcic gcii gciv gcov gggg gibb gibz gigg gigi gigo giog gioi gizi gizo gizz gobi gobo gogi gogo goog gooi govi gozi gozo gvvv i-go icbc iccb iccc icci icco icgc icoc igbc igbo igcc igoo iiii iiio iioi iioo iobi iocg ioci ioii ioio iooi iooo ivbv ivic ivig izzo obbo oboi obvi ocbc occc occi ogb oggi ogiz ogog ogoi oici oigo oiii oobi oooo oozi ovi- ovo- ovoo vbcc vcbi vcci vgcc vic- vici vico vigo viii vivi vivo voic voio voiz vooc voog vvob vvog vvvv zbvi zibo zico zigg zigi zigo zizi zizz zobo zoco zogg zogi zogo zoic zoio zoo- zozo zzzz