-vac a-ak aaaa aaac aaae aaar aaav aaca aacc aace aack aacr aacv aaea aaec aaev aaka aake aara aarc aare aava acaa acac acae acar acca accc acce ace- acea acec acek acer acev acke acr- acra acrc acre acrr acrv acvv aeac aeer aeka aer- aera aerc aeva akaa akae akar akca akee aker akka akr- akra akre arac arae arak arar arc- arca arce area arec aree arek arev arka arke arr- arra arrc arre arrk arrr arva arve avar avcc avce avea avec aver avra avre avva caaa caac cac- caca cacc cace cack cacr caec caer caka cake cara carc care cark carr cava cave ccaa ccac ccar ccca cccc cccv ccee ccra ccrc ccre ceac cear cec- ceca cece ceec ceke cer- cera cerc cere ceva ckac ckck ckcv cker ckrc crac crar crca crcc crce crcr cre- crea crec cree crkc cvac cvar cvca cvcc cver cvra cvrr eaca eacc eaec eara eare eave ecaa ecac ecar ecca eccc ecce ecka ecra ecrc ecrr ecrv eeca eeea eeee eeka eeke eera eerc eeva eka- ekek eker ekka erca ercc erce erec erer erev erke erra errc erre erve evac evae evar evea ever evra evre evvk kaaa kaak kaar kacc kace kacv kaer kaka kakc kake kakk kara kare kark karr karv kava kave kavv kcaa kcac kcar kcav kcca kccc kcck kccr kccv kcea kcec kcee kckc kckk kckr kckv kcrc kcrr kcrv kcvk kcvr kcvv kea- keak kear keca keck kecr keek keer keka kekc keke ker- kera kerc kere kerk kerr kerv keva keve kkaa kkac kkar kkck kkcr kkea kkkk kkrc kkre kkrk kkrr kkrv kkvr kkvv krac krae krak krar krav krca krcc krce krea krec kree krek krev krka krkc krke krkk krkr krkv krrc krre krrk krrr krva krvc krve krvk krvr krvv kvak kvar kvcc kvce kvck kvcr kvcv kvea kvec kver kvra kvrc kvre kvrr kvrv kvvr kvvv raak rac- raca racc race rack racv raec raer raka rake rakk rara rare rark rava rave rcac rccc rcvr rea- reac reae reak rear reca recc rece reck recr reek reev reka reke rera rere reva reve rrrr rv-c rvca rver vaar vaca vace vack vaka vake vara vare vark varr vava veak vear vecc veck veer veka veke ver- vera vere verk veve vrac vrak vrav vver vvvv