cccc cccl cccs cchl cchs cclc ccls ccoc ccsl ccss chch chcs chhs chlc choc choh chol choo chos chsc chsh clhs cloo clos clsc coch coco coho cohs col- coll colo cols cooh cool coos cosc cosh cosl coso coss cscc csch cscl csco cscs cshl cshs csos hccc hcch hccs hchs hcsc hcso hcss hhcl hhhh hhhs hlhs hlss hoch hocs hohl hoho hol- holc holh holl holo hols hool hoos hosh hoss hscc hshs hsls lccc lccs lchc lchs lcls lcsc lhhh lhhs lhss llcc llcs llhs lllc llll lloc lloo locc loch loco locs loho lohs loll lolo lols looc lool loos losc losh loso loss lsco lscs lshs lsoh lsso occc ochs oclc ocos ohcc ohho ohhs ohoh ohos ohso ohss olcc ollo olos olsh ooho oohs oolo oooh oooo ooos oscc oscl osco oshc osho oshs oslo osoo osos osso s-os sccc sccl sccs sch- schh schl scho schs scl- sclc scls scoh scol scoo scsc scsh scsl scso shcc shhh shhs shl- shls shoo shos shsc slcc slhs sloc sloh sloo slos slsc soch socl soco socs sohh sohl soho sohs solh soll solo sols sool soos sosh soso soss sscc sscs sshl sshs sslc ssoc sssc sssh ssss