aaaa aaac aaae aaca aacc aace aaco aact aaea aaec aaoe aaoo aata aatc aatt ac-t acaa acac acae acat acca accc acce acco acct ace- acea acec acet acoa acoe acot acta actc acte acto actt aeac aect aeta aetc aeto aett aetx aoca aoce aotc at-t at-x ataa atac atae atat atax atca atcc atco atea atec atee ateo atex atoc atoe atot atta atte atto axat axce axo- axoa axto axxo caaa caac caat cac- caca cacc cace caco caec caex cat- cata catc cate cato catt caxa ccaa ccac ccat ccca cccc ccee ccoc cctc cctt ceac ceat cec- ceca cece ceco cect ceec cet- ceta cete ceto cexe coat coax coca coce coco coct coex coot cota cotc cote coto cott coxa coxe ctae ctca ctec ctot ctta cxxx eaca eacc eaec eata eate ecaa ecac ecao ecat ecca eccc ecce ecco ecct eco- ecot ect- ecta ectc ecto eeca eeea eeee eeoc eeta eetc eete eext eota eotc eoto etat etcc etco etec etee etoe etox etta ette etto exa- exco exec exo- exta exte o-eo oate ocac ocat occa occc occt oce ocee ocet oct- octa octe octo oeax oec- oeca oecc oeec oeta ooaa oooo otac otea otee oto- otoe otoo otta otte otto oxa- oxea oxo- oxox oxxo taa- taat taca tacc tace taco tact taec taoa tata tate tato tatt tax- taxa taxe taxo taxt tcca tccc tctc teac teat teca teco tect teec teet teta tete teto tett tetx texa text toat toca toce toco toea toee toet tooa toot tota totc tote toto tott tox- toxa toxo toxt tteo ttoe tttt txaa xace xact xate xcat xexe xoca xoco xote xoxo xtea xxxo xxxx