bbbb bbbs bbch bbhs bcbc bcbs bccc bccs bchs bcos bcsc bcss bhcc bhhs bobb bobo bobs boch boco bocs boho bohs boob booc booh boos bosc bosh boso boss bscs bshs bsos bssc c-bo cbbc cbbs cbcc cbcs cbhs cbsc ccbc cccb cccc cccs cchs ccob ccoc ccss chch chcs chhs choc choh choo chos chsc chsh cobb cobh cobo cobs coch coco coho cohs coob cooh coos cosc cosh coso coss cscb cscc csch csco cscs cshs csob csos hbbs hbhs hboc hbos hbss hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hhhh hhhs hobo hobs hoch hocs hoho hoos hosh hoss hsbc hscc hshs hsob obbo obhs obos obss ocbc occc ochs ocos ohcc ohho ohhs ohob ohoh ohos ohso ohss ooho oohs oooh oooo ooos oscc osco oshc osho oshs osoo osos ossb osso s-os sbbs sbcc sbcs sbhc sbhs sccc sccs sch- schh scho schs scob scoh scoo scsc scsh scso shbs shcc shhh shhs shoo shos shsc sobo sobs soch soco socs sohh soho sohs soos sosh soso soss sscc sscs sshs ssoc sssb sssc sssh ssss