a-be a-ya aaaa aaab aaae aaba aabb aabt aaby aaea aata aatt abaa abab abae abat abax abay abb- abba abbb abbe abbt abby abee abet abey abta abye abyt abyy aeby aeta aett aetx at-t at-x ataa atab atae atat atax atay atea atee atex atta atte atty atya axat ayat ayay ayta ayya ba-x baaa baat baba babb babe baby bata bate batt baty baxt baya baye bayt bbay bbbb bbeb bbet beat beay beba bebb bebe beby beeb beet beey beta bete bett beya beye beyt btaa btex bttb byte eaba eata eate ebay ebba ebby ebya eeby eeea eeee eeta eete eext etat etee etta ette etty exa- exta exte exxy eyeb eyet eyey eyte taa- taat taba tabb tabe taby tata tatb tate tatt taty tax- taxa taxe taxt taxy taya taye tayt tayy tbta teat teba teet teta tete tett tetx texa text teya teye ttab ttbb tttt txaa tyee tyet tyta tyte tytt tyty tyxt xate xbee xexe xtea xxxx xxxy yaba yata yate yaxa yaxe yaya ybet yeat yeax yeet yeta yete yett yext yeye ytay yyyy