-hou -ous bbbb bbbs bbch bbhs bbrc bcbc bcbs bccc bccs bchs bcor bcos bcrs bcru bcsc bcss bcuc bhcc bhhs bhor bhur bhuu bobb bobo bobs bobu boch boco bocs bocu boho bohr bohs bohu boob booc booh boor boos bor- borh boro borr bors boru bosc bosh boso boss bosu bouh bour bous brcb brhs brob broc broh broo bror bros brou brrr brrs brsb brsr bruc bruh brus bscs bshs bsos bssc bubb bubo bubs bubu bucc buch buco bucs bucu buho buhr buhs bur- burb burh buro burr burs buru busc bush buss busu buus c-bo cbbc cbbs cbcc cbcr cbcs cbcu cbhs cbrh cbsc cbus ccbc cccb cccc cccs cccu cchr cchs ccob ccoc ccrc ccrs ccss ccuc ccus chch chcs chhs choc choh choo chor chos chou chrb chrc chro chrr chrs chsc chsh chsr chub chur chus cobb cobh cobo cobs cobu coch coco cocu coho cohs coob cooh coos cor- corb corc coro corr cors cosc cosh coso coss coub cour cous crbc crbu crcc crcr crhs crob croc croh croo cror crss crub crus cscb cscc csch csco cscr cscs cshs csob csor csos csrc csrs cssr csur csus cub- cubb cubs cucc curb curo curr curs cusb cush cuso cuss cusu hbbs hbhs hboc hbos hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hhhh hhhs hhus hobo hobs hoch hocr hocs hoho hoor hoos horc horo horr hors hosh hoss hour hrhs hrob hros hrrc hrso hsbc hscc hshs hsob hsur hubb hubo hubs huch hucs hucu huhs huhu huor huos huro hurr hurs huru hush huso huss huub huus obbo obhs obor obos obrh obro obsr obss obuh obus ocbc occc ochs ocos ocro ocrr ocrs ocur ohcc ohho ohhs ohob ohoh ohos ohso ohss ohus oocr ooho oohs oooh oooo ooos oous orbb orbo orbs orbu orch orco orcs orhs oro- oror oros orro orrs orso orsu orub orus oscc osco oshc osho oshs oshu osoo osor osos osro ossb osso ossu oubs oucc ouch our- ouro ours ouu- rbbb rbbr rbbs rbhs rboh rbss rcbc rcbo rccb rccc rccs rchb rchs rcos rcsc rcss rhhs rhob rhoc rhoh rhos rhus rob- robb robo robs robu rocc roch roco rocs rohr rohs rohu roob roor roos rorc roro roru rosc rosh roso ross roub rouh rous rrhs rrrr rscc rsch rscs rshs rsos rubb rubs rubu ruch ruhh ruhr ruhs rurc ruro rurs ruru rush ruso russ rusu s-os sbbs sbcc sbcs sbhc sbhs sbor sbus sccc sccs sch- schh scho schr schs scob scoh scoo scor scr- scrc scrs scsc scsh scso scsr scsu scub scur shbs shcc shhh shhs shoo shor shos shou shrs shsc shub shur shus shuu sobo sobr sobs sobu soch soco socr socs sohh soho sohs sohu soor soos sorb sorh soro sorr sors soru sosh soso soss sour sous srbc srcc srch srhs sros srub ssbr sscc sscs sshs ssoc ssrc ssrs sssb sssc sssh ssss sub- subb subh subo subs suc- succ such sucr sucs suhb suho suhr suoh suor suos sur- surc suro surr surs suru sus- suso suss susu suus ubbo uboc ubos ucbc ucho uchs ucos ucrc ucsb ucsc ucsu uhoh uhrs uhss uhuh uocc uor- urbs urch urho uro- uroo urrh urso urss ursu urur urus usbc usbr usbs uscc usch usco uscs usho ushr ushs ushu usoc usos ussb ussc ussr usss ussu usus uuoc uuuu