-vac a-ak a-ok aaaa aaac aaar aaav aaca aacc aack aaco aacr aact aacv aaka aaoo aara aarc aaro aart aata aatc aatk aatt aava ac-t acaa acac acar acat acca accc acco acct acoa acor acot acr- acra acrc acro acrr acrv acta actc acto actt actv acvv akaa akao akar akca akka akko akok akot akr- akra aktv aoca aora aort aotc arac arak arar arat arc- arca arco arct arka arko aroa aroo aror arr- arra arrc arrk arro arrr arrt arta artc arto artr artv arva arvo at-t ataa atac atak atar atat atca atcc atck atco atcr atka atkt atkv atoc atok ator atot atra atrc atrk atro atta atto attr avao avar avat avcc avco avkt avor avot avra avro avva avvo caaa caac caat cac- caca cacc cack caco cacr caka caor cara carc cark caro carr cart cat- cata catc cato catt catv cava cavo ccaa ccac ccar ccat ccca cccc cccv ccoc ccra ccrc ccrt cctc cctt cctv ccvo ckac ckat ckck ckco ckcv ckoa ckoc ckoo ckor ckot ckrc ckvo coak coat coca cock coco coct cok- coka coko cook coot cor- cora corc cork coro corr cort cota cotc coto cott cova covo crac crar crat crca crcc crcr crkc croc crok croo cror crot crrt crtc crtv ctca ctor ctot ctrc ctta ctvo ctvt cvac cvar cvca cvcc cvra cvrr kaaa kaak kaar kaat kacc kaco kact kacv kaka kakc kakk kako kakt kaoa kaoc kaok kaor kara kark karo karr kart karv kat- kata katc katk kato katr katt katv kava kavo kavv kcaa kcac kcar kcat kcav kcca kccc kcck kccr kcct kccv kckc kckk kcko kckr kckv kcor kcot kcrc kcro kcrr kcrt kcrv kcta kctc kcto kctv kcvk kcvo kcvr kcvv kkaa kkac kkar kkat kkck kkco kkcr kkct kkkk kkoa kkoo kkor kkot kkov kkrc kkrk kkro kkrr kkrt kkrv kktc kktk kktv kkvr kkvt kkvv koac koak koar koca kock koct koka kokc kokk koko kokr kooc kook kooo koor koot koov kora korc kork koro korr kort korv kota kotc kotk koto kotr kott kotv kova kovc kovk kovo kovr krac krak krar krat krav krca krcc krco krka krkc krkk krko krkr krkv kroa kroc krok kroo kror krov krrc krrk krro krrr krrt krta krtc krtk krto krtr krtv krva krvc krvk krvo krvr krvv ktaa ktak ktao ktar ktat ktav ktcc ktck ktco ktcr ktcv ktkc ktkk ktko ktkr ktkt ktoc ktok ktoo ktor ktot ktrc ktrk ktro ktrr ktrt ktrv kttc kttk ktto kttr kttt kttv ktva ktvc ktvk ktvo ktvr ktvt kvak kvar kvat kvcc kvck kvco kvcr kvct kvcv kvoa kvoc kvok kvoo kvor kvot kvov kvra kvrc kvro kvrr kvrv kvta kvtk kvto kvtr kvtt kvtv kvvr kvvv oara ocac ocak ocat occa occc occt ocra ocro ocrr oct- octa octo okak okka okko okok okor okot okra okro okta okto ooaa ooak oocr oooo oora oort orac orak orao orar orat orav orca orco orka orko oro- orok oror orot orra orro orta ortc orto orvr otac otak otar oto- otok otoo otor otov otra otro otta otto ovar ovo- ovoo ovot ovra raak raat rac- raca racc rack raco ract racv raka rakk rakt raoc raok rara rark raro rata ratk rato ratt rava rcac rccc rctc rctv rcvr roak roar roat roca rocc rock roco roka rokk roko rokr rook roor root rora rorc rork roro rort rota rotc rotk roto rotr rott rova rovo rrat rrrr rtca rtcc rtva rv-c rvca taa- taar taat taca tacc tack taco tact tacv taka takk tako takt taoa taor tara tarc tark taro tarr tart tata tato tatr tatt tatv tava tavo tcca tccc tcov tctc tkac toat toca tock toco toka toko tooa took toor toot tora torc tork toro torr tort torv tota totc toto totr tott tova tovo traa trac trak trao trat trav trca trcc troa troc troo trot trra trtc trtr tttt tvac tvro tvrr tvtv vaar vaat vaca vack vaco vaka vara vark varr vart vata vato vatt vava vcat vkor voar voat voca voka vooc voor voot vor- vora voro vort vota voto vovk vrac vrak vrav vroc vrot vrto vtac vvvv