-ous bbbb bbbs bblb bbls bcbc bcbs bccc bccl bccs bcos bcsc bcsl bcss bcuc blcu blls blob bloc bloo blou blss blub blus bobb bobo bobs bobu boco bocs bocu boll bolo bols bolu boob booc bool boos bosc boso boss bosu boul bous bscs bslc bsos bssc bubb bubo bubs bubu bucc buco bucs bucu bulb bull buls bulu buol busc buss busu buus c-bo cbbc cbbs cbcc cbcl cbcs cbcu cblb cblc cbol cbsc cbus ccbc cccb cccc cccl cccs cccu cclc ccls ccob ccoc ccsl ccss ccuc ccus clob cloo clos clou clsc club cobb cobo cobs cobu coco cocu col- colb coll colo cols colu coob cool coos cosc cosl coso coss coub coul cous cscb cscc cscl csco cscs cslu csob csos csus cub- cubb cubs cucc culb culc cull culo culs cusb cuso cuss cusu lbcc lbos lbsc lcbc lccc lccs lcls lcsc llbs llcc llcs lllc llll lloc lloo lob- lobb lobo lobs locc loco locs locu loll lolo lols loob looc lool loos losc loso loss loul lous louu lsbu lscb lsco lscs lsso lubs lucs lull lulu luso luss obbo obls oblu obol obos obss obus ocbc occc oclc ocos ocul olbo olcc ollo olos oolo oooo ooos oous oscc oscl osco oslo osoo osos ossb osso ossu osul oubs oucc ouls oulu ouu- s-os sbbs sbcc sbcs sbus sccc sccl sccs scl- sclc scls scob scol scoo scsc scsl scso scsu scub scul slcc slcu slob sloc sloo slos slsc slsu slub sluc sobo sobs sobu socl soco socs soll solo sols sool soos soso soss soul sous sscc sscs sslc ssoc sssb sssc ssss sub- subb subl subo subs suc- succ sucs sul- sulc sull sulo sulu suos sus- suso suss susu suus ubbo ublo ubls uboc ubos ucbc ucos ucsb ucsc ucsu ulbc ulcc ulco ullo ulo- uloc ulos ulul ulus uocc uolc usbc usbl usbs uscc usco uscs uslu usoc usos ussb ussc usss ussu usul usus uulu uuoc uuuu