cccc cccp cccv ccee ccoc ccpe ccpp ccpr ccrc ccre ccrp ccvo cec- cece ceco cecp ceec ceke ceop ceor cepc cepe cepo cepp cepr cer- cerc cere cero cerp cevo ckck ckco ckcv cker ckoc ckoo ckor ckpc ckpr ckrc ckvo coce cock coco cocp coep cok- coke coko cook coop cope copo copp copr cor- corc core cork coro corp corr cove covo cpce cpep cper cpre cpvc crcc crce crcr cre- crec cree creo crep crkc crkp croc croe crok croo crop cror crpc cvcc cver cvrr eccc ecce ecco ecko eco- ecop ecpp ecrc ecrr ecrv eeee eeke eeoc eerc eero ekco ekek eker ekpe ekpo eore epcc epec epee eper epoc epor eppc eppo eppp epro eprp ercc erce ercp erec erer erev erke eroc eroe eroo erpe errc erre erro erve ever evoe evoo evop evre evvk kccc kcck kccr kccv kcec kcee kceo kcep kckc kckk kcko kckr kckv kcoe kcor kcpc kcpo kcpr kcrc kcro kcrp kcrr kcrv kcvk kcvo kcvp kcvr kcvv keck keco kecr keek keep keer kekc keke keko keok kep- kepc kepe ker- kerc kere kerk kero kerp kerr kerv keve kkck kkco kkcr kkkk kkoo kkor kkov kkpc kkpk kkrc kkre kkrk kkro kkrr kkrv kkvr kkvv kock kocp kokc koke kokk koko kokp kokr kooc kook kooo koop koor koov kope kopp kopr korc kore kork koro korr korv kovc kove kovk kovo kovr kpcc kpcr kpcv kpek kper kpke kpkk kpkr kpoc kpoe kpok kpoo kpop kppc kppk kppo kppp kppr kppv kprc kpre kprk kpro kprp kprr kprv kpvc kpvr krcc krce krco krec kree krek kreo krev krkc krke krkk krko krkr krkv kroc kroe krok kroo krop kror krov krpr krrc krre krrk krro krrr krvc krve krvk krvo krvr krvv kvcc kvce kvck kvco kvcr kvcv kvec kver kvoc kvoe kvok kvoo kvop kvor kvov kvrc kvre kvro kvrp kvrr kvrv kvvp kvvr kvvv o-eo occc oce ocee ocke ocpp ocre ocro ocrr oec- oecc oeec oere oevp oker okko okok okor okpe okpo okre okro oocr ooer oooo oore opec opep oper opo- opor oppo orce orco ore- orec orek oreo orer orke orko oro- oroe orok oror orpc orpe orro orve orvr ovee over ovo- ovoo ovpp ovre pccc pcce pcep pcer pcoe pcpp pcrc pcre pece peck peco pecr peec peek peep peer peev peke pekk peko peor pepe pepo per- perc pere perk pero perp perr perv poce pock poco poer poke poko pook poop poor pop- popc pope popo popp porc pore pork poro porr povo ppcc pper pppo pppp pprc prcc prcp pre- prec pree prek prep prev pro- proc proe proo prop prov pvco rccc rcep rcpo rcvr recc rece reck recp recr reek reep reev reke reko reop repe repo repp repr rere rero reve revo revp rocc roce rock roco roer roev roke rokk roko rokr rook roop roor rope ropo rorc rore rork roro rove rovo rpoe rrrr rv-c rver vecc veck veep veer veke veor vepe vepr ver- vere verk vero veve vevo vkor voce voer voke vooc voor vor- vore voro vovk vpro vreo vroc vver vvvv