a-be a-ya aaaa aaab aaae aaaf aaba aabb aabt aaby aaea aafa aafb aaff aata aatf aatt abaa abab abae abaf abat abay abb- abba abbb abbe abbt abby abee abet abey abff abta abye abyt abyy aeaf aeby aeta aetf aett afaa afat afee afet affa afft affy afta afte afty afye at-t ataa atab atae atat atay atea atee atef atfb atfe atta atte atty atya ayat ayay ayta ayya baaa baaf baat baba babb babe baby baff baft bata bate batf batt baty baya baye bayt bbay bbbb bbeb bbet beaf beat beay beba bebb bebe beby beeb beef beet beey befa befe beff beft beta bete bett beya beye beyt bfta bftt btaa btaf bttb byte eaaf eaba eafb eata eate ebay ebba ebby ebya eeby eeea eeee eefa eefe eeta eete efab efet effa effy eft- efta efya etat etee etfa etfb etfe etta ette etty eyeb eyet eyey eyte faaa faba fabe faeb fafa fafe faff fata fate fatf fatt faya faye fayt feaf feat feba feeb feet fefe feff feta fete fett feyt ffee ffff fftf ftea ftfy fyfe taa- taaf taat taba tabb tabe taby tafa tafe taff taft tata tatb tate tatt taty taya taye tayt tayy tbaf tbta tbyf teat teba teef teet teff teft teta tete tett teya teye tfae tfeb ttab ttbb ttfa ttff tttt tyee tyet tyfe tyff tyft tyta tyte tytt tyty yaaf yaba yafa yafe yaff yaft yata yate yaya ybet yeaf yeat yeet yefe yeff yeft yeta yete yett yeye yfet yfte ytay yyfe yyff yyyy