-vac aaaa aaac aaae aaav aaca aacc aace aact aacv aaea aaec aaev aata aatc aatt aava ac-t acaa acac acae acat acca accc acce acct ace- acea acec acet acev acta actc acte actt actv acvv aeac aect aeta aetc aett aetx aeva at-t at-x ataa atac atae atat atax atca atcc atea atec atee atex atta atte avat avax avcc avce avea avec avex avva axat axce caaa caac caat cac- caca cacc cace caec caex cat- cata catc cate catt catv cava cave caxa ccaa ccac ccat ccca cccc cccv ccee cctc cctt cctv ceac ceat cec- ceca cece cect ceec cet- ceta cete cetv ceva cexe ctae ctca ctec ctta ctvt cvac cvax cvca cvcc cvet cvte cxxv cxxx eaca eacc eaec eata eate eave ecaa ecac ecat ecca eccc ecce ecct ect- ecta ectc ectv eeca eeea eeee eeta eetc eete eeva eext etat etcc etec etee etta ette evac evae evat evea evet evex exa- exec exta exte taa- taat taca tacc tace tact tacv taec tata tate tatt tatv tava tave tax- taxa taxe taxt tcca tccc tctc teac teat teca tect teec teet teev teta tete tett tetx teva texa text tttt tvac tvtv txaa vaat vaca vace vata vate vatt vava vcat veat vecc veet veta vete veve vext vexx vt-x vtac vtec vvvv xace xact xate xavc xcat xexe xtea xxvc xxxv xxxx