bbbb bbbs bbch bbhs bbrc bcbc bcbs bccc bccs bchs bcor bcos bcrs bcsc bcss bctc bcts bhcc bhhs bhor bhot bhrt bobb bobo bobs boch boco bocs boho bohr bohs boht boob booc booh boor boos boot bor- borh boro borr bors bort bosc bosh boso boss bost botb both boto bots bott brcb brhs brob broc broh broo bror bros brot brrr brrs brsb brsr brst brtc bscs bshs bsos bssc bsts btcc btcs bths btob btor btrc btrt btss bttb c-bo cbbc cbbs cbcc cbcr cbcs cbct cbhs cbot cbrh cbrt cbsc cbtc ccbc cccb cccc cccs cchr cchs ccob ccoc ccrc ccrs ccrt ccss ccst cctb cctc cctt chch chcs chhs choc choh choo chor chos chrb chrc chro chrr chrs chrt chsc chsh chsr chst chto chtr chtt cobb cobh cobo cobs coch coco coct coho cohs coob cooh coos coot cor- corb corc coro corr cors cort cosc cosh coso coss cost cotb cotc coth coto cots cott crbc crcc crcr crhs crob croc croh croo cror crot crrt crss crst crtc crts cscb cscc csch csco cscr cscs cshs csob csor csos csot csrc csrs cssr cstc csto cstr csts ctbs cths ctor ctos ctot ctrc ctrs ctsc ctss ctts hbbs hbhs hboc hbos hbrs hbss hcbc hcbs hccb hccc hcch hccs hchs hcsc hcso hcss hcst hhhh hhhs hobo hobs hoch hocr hocs hoho hoor hoos hoot horc horo horr hors hort hosh hoss host hotb hoth hoto hotr hots hott hrhs hrob hros hrrc hrso hrtb hsbc hscc hsct hshs hsob hsts htcc hths htoh htsc httr obbo obhs obor obos obot obrh obro obsr obss obst obts ocbc occc occt ochs ocht ocos ocro ocrr ocrs oct- octo octs ohcc ohho ohhs ohob ohoh ohos ohso ohss ohto oocr ooho oohs oooh oooo ooos oort oost ootb oots orbb orbo orbs orch orco orcs orhs oro- oror oros orot orro orrs orso ortc orth orto orts oscc osco oshc osho oshs osoo osor osos osro ossb osso ostc ostr osts otbs otho othr oths oto- otoh otoo otor otos otro otrs otso otto otts rbbb rbbr rbbs rbhs rboh rbss rbst rcbc rcbo rccb rccc rccs rchb rchs rcos rcsc rcss rctc rcts rhhs rhob rhoc rhoh rhos rob- robb robo robs robt rocc roch roco rocs rohr rohs roob roor roos root rorc roro rort rosc rosh roso ross rost rotc roth roto rotr rots rott rrhs rrrr rscc rsch rscs rshs rsos rsts rtcc rths rtss rtts s-os sbbs sbcc sbcs sbct sbhc sbhs sbor sbot sbst sbtc sccc sccs scct sch- schh scho schr schs scob scoh scoo scor scot scr- scrc scrs scsc scsh scso scsr scst sctc scto sctr scts shbs shbt shcc shhh shhs shoo shor shos shot shrs shsc shts sobo sobr sobs sobt soch soco socr socs sohh soho sohs soor soos soot sorb sorh soro sorr sors sort sosh soso soss sost sotc soth soto sots srbc srcc srch srct srhs sros srtr ssbr sscc sscs sshs ssoc ssot ssrc ssrs sssb sssc sssh ssss sstb sstc ssth ssts stbc stbs stcc stch stcs sths stob stoo stor stos stot strc stro strs stss sttc sttr tbbs tbcb tbcc tbhs tbrb tbst tcbs tccc tch- tchh tcho tchr tchs tcos tcsh tctc tcts thbs thch thoo thor thos thot thro thsr thss thtb thtr thts tobo tobs tobt toch toco toho tooh toor toos toot torc toro torr tors tort tosb tosc tosh toso toss tost totc toth toto totr tots tott trcc trhs troc troo tros trot trst trtc trtr tsbc tscc tshb tshs tsob tsos tssr tsst tstc tsts ttbb ttss tttt