-vac a-ak a-ok aaaa aaac aaae aaar aaav aaca aacc aace aack aaco aacr aacv aaea aaec aaev aaka aake aaoe aaoo aara aarc aare aaro aava acaa acac acae acar acca accc acce acco ace- acea acec acek acer acev acke acoa acoe acor acr- acra acrc acre acro acrr acrv acvv aeac aeer aeka aer- aera aerc aero aeva akaa akae akao akar akca akee aker akka akko akok akr- akra akre aoca aoce aora arac arae arak arar arc- arca arce arco area arec aree arek areo arev arka arke arko aroa aroe aroo aror arr- arra arrc arre arrk arro arrr arva arve arvo avao avar avcc avce avco avea avec aveo aver avor avra avre avro avva avvo caaa caac cac- caca cacc cace cack caco cacr caec caer caka cake caor cara carc care cark caro carr cava cave cavo ccaa ccac ccar ccca cccc cccv ccee ccoc ccra ccrc ccre ccvo ceac cear cec- ceca cece ceco ceec ceke ceor cer- cera cerc cere cero ceva cevo ckac ckck ckco ckcv cker ckoa ckoc ckoo ckor ckrc ckvo coak coca coce cock coco cok- coka coke coko cook cor- cora corc core cork coro corr cova cove covo crac crar crca crcc crce crcr cre- crea crec cree creo crkc croc croe crok croo cror cvac cvar cvca cvcc cver cvra cvrr eaca eacc eaec eara eare earo eave ecaa ecac ecao ecar ecca eccc ecce ecco ecka ecko eco- ecra ecrc ecrr ecrv eeca eeea eeee eeka eeke eeoc eera eerc eero eeva eka- ekco ekek eker ekka ekoa eoka eora eore erca ercc erce erec erer erev erke eroc eroe eroo erra errc erre erro erve evac evae evar evea ever evoe evoo evra evre evvk kaaa kaak kaar kacc kace kaco kacv kaeo kaer kaka kakc kake kakk kako kaoa kaoc kaok kaor kara kare kark karo karr karv kava kave kavo kavv kcaa kcac kcar kcav kcca kccc kcck kccr kccv kcea kcec kcee kceo kckc kckk kcko kckr kckv kcoe kcor kcrc kcro kcrr kcrv kcvk kcvo kcvr kcvv kea- keak kear keca keck keco kecr keek keer keka kekc keke keko keok ker- kera kerc kere kerk kero kerr kerv keva keve kkaa kkac kkar kkck kkco kkcr kkea kkkk kkoa kkoo kkor kkov kkrc kkre kkrk kkro kkrr kkrv kkvr kkvv koac koae koak koar koca kock koea koka kokc koke kokk koko kokr kooc kook kooo koor koov kora korc kore kork koro korr korv kova kovc kove kovk kovo kovr krac krae krak krar krav krca krcc krce krco krea krec kree krek kreo krev krka krkc krke krkk krko krkr krkv kroa kroc kroe krok kroo kror krov krrc krre krrk krro krrr krva krvc krve krvk krvo krvr krvv kvak kvar kvcc kvce kvck kvco kvcr kvcv kvea kvec kver kvoa kvoc kvoe kvok kvoo kvor kvov kvra kvrc kvre kvro kvrr kvrv kvvr kvvv o-eo oaer oake oara oare ocac ocak occa occc oce ocee ocke ocra ocre ocro ocrr oec- oeca oecc oeec oera oere okak oker okka okko okok okor okra okre okro ooaa ooak oocr ooer oooo oora oore orac orae orak orao orar orav orca orce orco ore- orea orec orek oreo orer orka orke orko oro- oroe orok oror orra orro orve orvr ovar ovee over ovo- ovoo ovra ovre raak rac- raca racc race rack raco racv raec raer raka rake rakk raoc raok rara rare rark raro rava rave rcac rccc rcvr rea- reac reae reak reao rear reca recc rece reck recr reek reev reka reke reko rera rere rero reva reve revo roak roar roca rocc roce rock roco roea roer roev roka roke rokk roko rokr rook roor rora rorc rore rork roro rova rove rovo rrrr rv-c rvca rver vaar vaca vace vack vaco vaka vake vara vare vark varr vava veak vear vecc veck veer veka veke veor ver- vera vere verk vero veve vevo vkor voar voca voce voer voka voke vooc voor vor- vora vore voro vovk vrac vrak vrav vreo vroc vver vvvv