a-be a-ha aaaa aaab aaac aaae aaah aaba aabb aabc aabh aabt aaca aacb aacc aace aach aact aacu aaea aaec aaha aata aatc aatt abaa abab abac abae abat abau abb- abba abbb abbe abbt abca abcb abcc abch abct abec abee abet abha abta abtu abua abue abut ac-t acaa acab acac acae acat acba acca accc acce acch acct accu ace- acea acec aceh acet acha ache achh acht achu acta actc acte acth actt actu acu- acue acut aeac aecb aect aeta aetc aett ahab ahac ahah ahat ahau ahet ahha ahta ahte ahua at-t ataa atab atac atae atat atca atcc atch atea atec atee atha athe atta atte attu atua atub atuc auaa aube auca auce auch auct auht aut- aute auth baaa baah baat baba babb babe babu bac- baca bacc bace bach bact baha baht bahu bata batc bate bath batt batu bau- bbau bbbb bbch bbeb bbet bcaa bcat bcbc bcca bccc bcec bcet bche bctc bcuc beah beat beau beba bebb bebe beca bech becu beeb beet beta betc bete beth bett betu bhat bhca bhcc bhet bhut bhuu btaa btcc btec bttb buat buba bubb bube bubu buca bucc buce buch bucu buea bueu buha buhe but- buta bute butt caaa caab caac caah caat caba cabe cabu cac- caca cacc cace cach caec caeu caha cahe caht cat- cata catb catc cate cath catt catu cauc caut cbac cbat cbbc cbca cbcc cbce cbct cbcu cbea cbec cbee cbet cbha cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc cccu ccee ccha cche cctb cctc cctt ccuc ccut ceac ceat ceba cebu cec- ceca cece cect ceeb ceec cet- ceta cete chaa chab chac chae chah chat chau chca chce chch chea cheb chec chee cheh chet cheu chha chtt chua chub chut ctab ctae ctba ctca ctec ctta cuau cub- cuba cubb cube cuca cucc cuce cut- cuta cutc cute cuth cutt eaba eabh eaca eacc each eaec eata eate eath ebac ebba ebbc ebcc ecaa ecac ecat ecbc ecbe ecca eccb eccc ecce ecct echa eche echt ect- ecta ectc ecth ecua eeca eeea eeee eeta eetc eete eeth eetu ehaa ehcc ehea eheh eheu ehte etah etat etbc etcc etch etec etee eth- etha ethe etta ette ettu etua euba eubc euch euth haab haat haba habe habt habu hace haec haet haha haht hata hatb hate hath hatt hatu hau- haue haut hbtu hcat hcbc hcca hccb hccc hcch heah heat hebb hebe heca hech hect heeb heet hehe heta hete heth hett hetu heue hhaa hhat hhhh htab htcc htea htet huac huah huba hubb hube huch hucu huea huet huhu huta hute huth hutt hutu huub taa- taat taba tabb tabc tabe tabu taca tacc tace tach tact taec taha tahe tahu tata tatb tate tath tatt tatu taua taub tauc taue taut tbca tbcb tbcc tbce tbta tcca tccc tccu tch- tcha tche tchh tchu tctc teac teat teba tebu teca tech tect teec teet teta tete teth tett tetu teut thaa thae that thau thca thch the- thea theb thec thee thet theu thtb thue ttab ttbb tttt tuae tuat tuba tubb tube tubu tuca tucc tuch tuet tuht tuhu tuta tute tutt tutu uabc uaca uata uath uatu uaua ubac ubba ubbe ubet ucat ucbc ucca ucea ucha uche ucua ucut ueba uhta uhuh utac utah utau utec utha uthe uttu uuta uuuu