-ous bbbb bbbs bcbc bcbp bcbs bccc bccs bcos bcpp bcps bcsc bcss bcuc bcup bobb bobo bobs bobu boco bocs bocu boob booc boop boos bopp bops bosc boso boss bosu boup bous bpcp bpsu bscp bscs bsos bspp bssc bsup bubb bubo bubs bubu bucc buco bucs bucu bupc bups busc buss busu buus c-bo cbbc cbbs cbcc cbcp cbcs cbcu cbpc cbpp cbsc cbus ccbc cccb cccc cccp cccs cccu ccob ccoc ccpp ccps ccsp ccss ccuc ccup ccus cobb cobo cobs cobu coco cocp cocu coob coop coos copo copp cops cosc coso cosp coss coub coup cous cpbc cpcs cpcu cpos cpps cpsc cpso cpsu cpus cscb cscc csco cscs csob csos cspb cspc csps csup csus cub- cubb cubs cucc cupo cupp cups cusb cuso cusp cuss cusu obbo obos obss obus ocbc occc ocos ocpp oooo ooos oops oous opo- opos oppo opps opsu opus osbp oscc osco osoo osos ossb osso ossu oubs oucc ouu- pbcc pboc pbsp pcbc pcbs pccc pccs pcos pcpb pcpp pcps pcso pobo pobs poco pocs poop poos pop- popc popo popp pops posb poso poss poup pous ppcc ppcs ppos pppo pppp ppps ppss psco pscu psoc psos psou pspp psps pssc psso pubs pubu pups pupu puss puuc s-os sbbs sbcc sbcs sbsp sbus sccc sccp sccs scob scoo scop scpb scpo scps scsc scso scsu scub scup sobo sobp sobs sobu soco socs soop soos sopo sopp sops sopu soso soss soup sous spcc spco spcs spoc spoo spop spos spps spso spsp spss spus sscc sscp sscs ssoc ssop sspc sspo ssps sssb sssc ssss sub- subb subo subs suc- succ sucs suos sup- supo supp sups sus- suso susp suss susu suus ubbo uboc ubos ubpc ucbc uccp ucos ucpb ucsb ucsc ucsu uocc upcs upos uppc uppp uppu upsc upup usbc usbs uscc usco uscs usoc usos uspc uspo uspp usps ussb ussc usss ussu usus uucp uuoc uuuu