-ous c-cd cccc cccs cccu ccdc ccdr ccds ccoc ccod ccrc ccrs ccsd ccss ccuc ccus cd-r cdcs cddr cdos cdrs cdss ckck ckco ckcs ckdo ckdu ckoc ckoo ckor ckos ckrc ckrd ckso cock coco cocu codd cods cok- coko cood cook coos cor- corc cord cork coro corr cors cosc coso coss coud couk cour cous crcc crcr crdc crkc croc crod crok croo cror crss crud cruk crus cscc cscd csco cscr cscs csdr csks csor csos csrc csrd csrs cssd cssr csur csus cucc cuck cuds cuk- curd curo curr curs cusd cusk cuso cuss cusu dccc dccs dccu dcds dcos dcrk dcsc dcss dddd ddoc ddrc ddss dkdc dock doco docs docu dod- dodd dodo dods doko dood dook door doos dorc dord dork doro dorr dors doru dosk doso doss douc doud douk dour dous drod drou drrs druk drus druu dscc dscr dscs dsdr dsos dsrc dsrr dssc duck duco ducs dudd dudo duds dudu duku duo- duos durk duro duru dusk duur k-os kccc kccd kcck kccr kccu kcdc kcdd kcdr kcds kcdu kckc kckk kcko kckr kcor kcos kcou kcrc kcro kcrr kcrs kcru kcsc kcsd kcsr kcss kcsu kcuk kdcc kdcd kdco kdcr kddc kddd kddk kddr kdkd kdkk kdko kdkr kdoc kdok kdro kdrs kdsc kdsd kdsk kdsr kdss kdsu kduc kdur kdus kkcd kkck kkco kkcr kkcs kkdc kkdd kkdo kkkk kkoo kkor kkrc kkrk kkro kkrr kkrs kksd kksr kkss kksu kkus kkuu kocd kock kocs kodk kodo kods kodu kokc kokk koko kokr koks koku kooc kook kooo koor koos koou korc kord kork koro korr kors koru kos- kosc kosd koso kosr koss kosu kour kous kouu krcc krcd krco krcs krcu krdc krdd krdo krdr krds krdu krkc krkd krkk krko krkr krks krku kroc krod krok kroo kror kros krrc krrk krro krrr krrs krsc krsd krsk krsr krss krsu kruc kruk krur ksck ksco kscr kscs kscu ksdc ksdk ksdr ksds kskd kskk ksko kskr ksks ksku ksoc ksok ksoo ksor ksos ksou ksro ksrr ksrs ksso kssr ksss kssu ksud ksuu kucc kucd kuco kucr kudd kudo kudu kukk kuks kuku kuok kuoo kuos kurd kurk kuro kurr kurs kuru kusc kusd kuso kusu kuuk kuur kuuu occc ocds ocks ocos ocro ocrr ocrs ocur oddd odds odoo odor odos odou odso odur odus okcu okko okok okor okro okso okur okus oocr ooku oooo ooos oord oous orco orcs ordo ords ordu orko oro- orok oror oros orro orrs orsk orso orsu orus oscc osco osku osoo osor osos osrd osro ossd osso ossu oucc oudc ouds our- ouro ours ousd ouu- rccc rccs rcdc rcds rcos rcrd rcsc rcsd rcss rdoc rdos rdso rkos rkss rocc rock roco rocs rodd rodo rods rokk roko rokr roks roku rood rook roor roos rorc rork roro roru rosc roso ross roud rouk rous rrrr rscc rscs rsdd rsds rsos ruck rudd rudo ruds rukk ruku ruok rurc rurd ruro rurs ruru rusk ruso russ rusu ruud s-os sccc sccs scdc scds sck- scok scoo scor scr- scrc scrs scsc scsd scso scsr scsu scud scur sdcc sdco sddc sdds sdrc sdrs sdsc sdss sdsu skor sksd skss skud skur sock soco socr socs sodd sodo sods sodu sokk soko soku sood sook soor soos sord soro sorr sors soru soso soss soud souk sour sous srcc sros srsd sscc sscs ssdc ssdd ssoc ssrc ssrs sssc ssss suc- succ suck sucr sucs sudd sudo suds suks suku suor suos sur- surc surd suro surr surs suru sus- susd susk suso suss susu suus ucdc ucdd ucos ucrc ucsc ucsd ucsu udds udoo udos udsd uduk ukcc ukko ukok ukrc uksc ukur uocc uor- urds urdu uro- urok uroo urso urss ursu uruk urur urus us-k uscc usco uscs usdc usdo usds usoc usos ussc ussr usss ussu usus uuoc uuuu