-vac aaaa aaac aaae aaaf aaav aaca aacc aace aacf aact aacv aaea aaec aaev aafa aafc aaff aata aatc aatf aatt aava ac-t acaa acac acae acat acca accc acce accf acct ace- acea acec acet acev acfc acfe acft acta actc acte actf actt actv acvv aeac aeaf aect aeta aetc aetf aett aeva afaa afat afca afcc afee afet affa affc afft afta aftc afte at-t ataa atac atae atat atca atcc atcf atea atec atee atef atfc atfe atta atte avat avcc avce avea avec avva caaa caac caaf caat cac- caca cacc cace caec cafa cafc cafe caff cat- cata catc cate catf catt catv cava cave ccaa ccac ccaf ccat ccca cccc cccf cccv ccee ccfa ccfc ccff cctc cctt cctv ceac ceat cec- ceca cece cect ceec cef- cefa cefc cet- ceta cete cetv ceva cfaa cfac cfae cfav cfca cfcf cfta cftc cfte ctae ctca ctcf ctec ctfc ctta ctvt cvac cvca cvcc cvet cvte eaaf eaca eacc eaec eata eate eave ecaa ecac ecat ecca eccc ecce ecct ecef ecfa ecfc ect- ecta ectc ectf ectv eeca eeea eeee eefa eefe eeta eetc eete eeva efca efet effa eft- efta etat etcc etec etee etfa etfc etfe etta ette evac evae evat evea evet faaa faac faca facc face fact fafa fafc fafe faff fata fatc fate fatf fatt fava favc fave fcat fcca fccf feaf feat fece fect feet fefc fefe feff feta fete fett fetv feve ffcc ffee ffff fftf ft-c ftea ftfc taa- taaf taat taca tacc tace tact tacv taec tafa tafc tafe taff taft tata tate tatt tatv tava tave tcca tccc tcfc tctc teac teat teca tect teec teef teet teev tefc teff teft teta tete tett teva tfae tfca tfec tftc ttfa ttfc ttff tttt tvac tvtv vaat vaca vace vafa vata vate vatt vava vcat veat vecc veet vefa veta vete veve vfat vfcc vtac vtec vvvv