-ous cccc cccs cccu cccv ccoc ccrc ccrs ccss ccuc ccus ccvo ccvs coco cocu coos cor- corc coro corr cors cosc coso coss cour cous covo crcc crcr croc croo cror crss crus cscc csco cscr cscs csor csos csrc csrs cssr csur csus cucc curo curr curs cuso cuss cusu cvcc cvrr cvss occc ocos ocro ocrr ocrs ocur oocr oooo ooos oous orco orcs oro- oror oros orro orrs orso orsu orus orvr orvs oscc osco osoo osor osos osov osro osso ossu oucc our- ouro ours ouu- ovcs ovo- ovoo rccc rccs rcos rcsc rcss rcuv rcvr rcvs rocc roco rocs roor roos rorc roro roru rosc roso ross rous rovo rovs rrrr rscc rscs rsos rurc ruro rurs ruru ruso russ rusu ruvu rv-c s-os sccc sccs scoo scor scr- scrc scrs scsc scso scsr scsu scur soco socr socs soor soos soro sorr sors soru soso soss sosv sour sous sovo sovs sovu srcc sros sscc sscs ssoc ssrc ssrs sssc ssss suc- succ sucr sucs suor suos sur- surc suro surr surs suru surv sus- suso suss susu suus suvs svcc svcs svor svsc ucos ucrc ucsc ucsu uocc uor- uovo uro- uroo urso urss ursu urur urus uscc usco uscs usoc usos usov ussc ussr usss ussu usus uuoc uuuu uv-c uvvu vcrs vooc voor vor- voro vors voru voso voss vosu vour vous vroc vssc vuco vvvv