-vac a-ak a-ok aaaa aaac aaar aaav aaca aacc aack aaco aacr aacu aacv aaka aaku aaoo aara aarc aaro aaru aava acaa acac acar acca accc acco accu acoa acor acou acr- acra acrc acro acrr acrv acu- acuo acur acvv akaa akao akar akca akka akko akku akok akr- akra akua aoca aora arac arak arar arau arc- arca arco arka arko aroa aroo aror arr- arra arrc arrk arro arrr arru arua arva arvo auaa auca aur- aura auro avao avar avcc avco avor avou avra avro avur avva avvo caaa caac cac- caca cacc cack caco cacr caka caor cara carc cark caro carr cauc cauk cauo cava cavo cavu ccaa ccac ccar ccca cccc cccu cccv ccoc ccra ccrc ccuc ccvo ckac ckck ckco ckcv ckoa ckoc ckoo ckor ckrc ckvo coak coca cock coco cocu cok- coka coko cook cor- cora corc cork coro corr coua couk cour cova covo crac crar crau crca crcc crcr crkc croc crok croo cror cruk cuau cuca cucc cuck cuk- cuka cura curo curr cvac cvar cvca cvcc cvra cvrr kaaa kaak kaar kacc kaco kacu kacv kaka kakc kakk kako kaku kaoa kaoc kaok kaor kara kark karo karr karu karv kau- kauc kauk kauo kaur kava kavo kavu kavv kcaa kcac kcar kcau kcav kcca kccc kcck kccr kccu kccv kckc kckk kcko kckr kckv kcor kcou kcrc kcro kcrr kcru kcrv kcua kcuk kcvk kcvo kcvr kcvu kcvv kkaa kkac kkar kkck kkco kkcr kkkk kkoa kkoo kkor kkov kkrc kkrk kkro kkrr kkrv kkua kkuu kkvr kkvu kkvv koac koak koar koca kock koka kokc kokk koko kokr koku kooc kook kooo koor koou koov kora korc kork koro korr koru korv koua kour kouu kova kovc kovk kovo kovr krac krak krar krav krca krcc krco krcu krka krkc krkk krko krkr krku krkv kroa kroc krok kroo kror krov krrc krrk krro krrr krua kruc kruk krur krva krvc krvk krvo krvr krvv kuac kuar kuau kuca kucc kuco kucr kucv kuka kukk kuku kuoa kuok kuoo kura kurk kuro kurr kuru kurv kuuk kuur kuuu kuva kuvo kuvr kvak kvar kvcc kvck kvco kvcr kvcu kvcv kvoa kvoc kvok kvoo kvor kvou kvov kvra kvrc kvro kvrr kvrv kvuu kvvr kvvv oaau oara ocac ocak occa occc ocra ocro ocrr ocur okak okcu okka okko okok okor okra okro okur ooaa ooak oocr ooku oooo oora orac orak orao orar orav orca orco orka orko oro- orok oror orra orro orvr ouac oucc our- oura ouro ouu- ovar ovo- ovoo ovra raak rac- raca racc rack raco racu racv raka rakk raku raoc raok rara rark raro raua rauc rauk rava rcac rccc rcuv rcvr roak roar roca rocc rock roco roka rokk roko rokr roku rook roor rora rorc rork roro roru roua rouk rova rovo rrrr ruca ruck ruka rukk ruku ruok rura rurc ruro ruru ruvu rv-c rvca uaca uaoc uarc uaru uaua ucak ucar ucav ucca ucka ucrc ucua ukcc ukko ukok ukra ukrc ukur uocc uor- uovo urac urao urau urca urka uro- uroa urok uroo urra uruk urur urva uuoc uuuu uv-a uv-c uvaa uvac uvok uvvu vaar vaca vack vaco vaka vara vark varr varu vava vkor voar voca voka vooc voor vor- vora voro voru vouk vour vovk vrac vrak vrav vroc vruk vuca vuco vuka vuku vvvv