bbbb bbci bcbc bcbp bccc bcci bcpp bibb bibi bibo bicc bici bico bio- bioc bioi bipp bobb bobi bobo boco boi- boii boob booc boop bopp bpcp c-bo cbbc cbcc cbcp cbpc cbpp ccbc cccb cccc ccci cccp ccic ccii ccip ccob ccoc ccpp cibc cibi cibo cicc cici cico ciii ciob cipo cipp cobb cobi cobo coco cocp coip coob coop copi copo copp cpbc cpic cpio icbc icbp iccb iccc icci icco iccp icoc icpc icpo iiii iiio iioi iioo iiop iobi ioci iocp ioii ioio iooi iooo ipcc ipop ippc ippo obbo oboi ocbc occc occi ocpp oici oiii oipc oobi oooo opic opii opio opo- oppi oppo pbcc pboc pcbc pccc pcip pcpb pcpp pibb pibi picc pici pico piip piob pipi pipo pipp pobo poco poio poop pop- popc popi popo popp ppcc ppci ppib ppic pppo pppp