-ous cccc cccs cccu ccoc ccrc ccrs ccrt ccss ccst cctc cctt ccuc ccus ccut coco coct cocu coos coot cor- corc coro corr cors cort cosc coso coss cost cotc coto cots cott cotu cour cous cout crcc crcr croc croo cror crot crrt crss crst crtc crts crus crut cscc csco cscr cscs csor csos csot csrc csrs cssr cstc csto cstr csts csur csus ctor ctos ctot ctrc ctrs ctsc ctss ctsu ctts cucc curo curr curs curt cuso cuss cust cusu cut- cutc cuto cuts cutt occc occt ocos ocro ocrr ocrs oct- octo octs ocur oocr oooo ooos oort oost oots oous orco orcs oro- oror oros orot orro orrs orso orsu ortc orto orts orus oscc osco osoo osor osos osro osso ossu ostc ostr osts oto- otoo otor otos otro otrs otso otsu otto otts ottu otur otus oucc our- ouro ours ourt oust out- outo outs ouu- rccc rccs rcos rcsc rcss rctc rcts rocc roco rocs roor roos root rorc roro rort roru rosc roso ross rost rotc roto rotr rots rott rous rout rrrr rscc rscs rsos rsts rstu rtcc rtss rtts ruct rurc ruro rurs ruru ruso russ rust rusu ruto ruts rutt rutu s-os sccc sccs scct scoo scor scot scr- scrc scrs scsc scso scsr scst scsu sctc scto sctr scts scur scut soco socr socs soor soos soot soro sorr sors sort soru soso soss sost sotc soto sots sotu sour sous sout srcc srct sros srtr sscc sscs ssoc ssot ssrc ssrs sssc ssss sstc ssts stcc stcs stcu stoo stor stos stot stou strc stro strs stru stss sttc sttr stuc stur stus stut suc- succ sucr sucs suor suos sur- surc suro surr surs surt suru sus- suso suss sust susu suto sutu suus tccc tccu tcos tctc tcts toco toor toos toot torc toro torr tors tort toru tosc toso toss tost tosu totc toto totr tots tott tour tous tout trcc troc troo tros trot trou trst trtc trtr truc trus trut truu tscc tsos tsou tssr tsst tstc tsts ttss tttt tucc tuco tuor tuos turc turo turr turs turt turu tusc tuss tust tuto tuts tutt tutu tuuo ucos ucrc ucsc ucst ucsu ucut uocc uor- uro- uroo urso urss ursu urts urur urus urut uscc usco uscs usoc usos ussc ussr usss usst ussu ustc usto usts usus utor utsc utto uttu uuoc uuuu