bbbb bbbs bbch bbhs bbrc bcbc bcbs bccc bccs bchs bcor bcos bcrs bcsc bcss bhcc bhhs bhor bobb bobo bobs boch boco bocs boho bohr bohs boob booc booh boor boos bor- borh boro borr bors bosc bosh boso boss brcb brhs brob broc broh broo bror bros brrr brrs brsb brsr bscs bshs bsos bssc c-bo cbbc cbbs cbcc cbcr cbcs cbhs cbrh cbsc ccbc cccb cccc cccs cchr cchs ccob ccoc ccrc ccrs ccss chch chcs chhs choc choh choo chor chos chrb chrc chro chrr chrs chsc chsh chsr cobb cobh cobo cobs coch coco coho cohs coob cooh coos cor- corb corc coro corr cors cosc cosh coso coss crbc crcc crcr crhs crob croc croh croo cror crss cscb cscc csch csco cscr cscs cshs csob csor csos csrc csrs cssr hbbs hbhs hboc hbos hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hhhh hhhs hobo hobs hoch hocr hocs hoho hoor hoos horc horo horr hors hosh hoss hrhs hrob hros hrrc hrso hsbc hscc hshs hsob obbo obhs obor obos obrh obro obsr obss ocbc occc ochs ocos ocro ocrr ocrs ohcc ohho ohhs ohob ohoh ohos ohso ohss oocr ooho oohs oooh oooo ooos orbb orbo orbs orch orco orcs orhs oro- oror oros orro orrs orso oscc osco oshc osho oshs osoo osor osos osro ossb osso rbbb rbbr rbbs rbhs rboh rbss rcbc rcbo rccb rccc rccs rchb rchs rcos rcsc rcss rhhs rhob rhoc rhoh rhos rob- robb robo robs rocc roch roco rocs rohr rohs roob roor roos rorc roro rosc rosh roso ross rrhs rrrr rscc rsch rscs rshs rsos s-os sbbs sbcc sbcs sbhc sbhs sbor sccc sccs sch- schh scho schr schs scob scoh scoo scor scr- scrc scrs scsc scsh scso scsr shbs shcc shhh shhs shoo shor shos shrs shsc sobo sobr sobs soch soco socr socs sohh soho sohs soor soos sorb sorh soro sorr sors sosh soso soss srbc srcc srch srhs sros ssbr sscc sscs sshs ssoc ssrc ssrs sssb sssc sssh ssss