a-ak a-be a-ha aaaa aaab aaac aaae aaah aaba aabb aabc aabh aabt aaca aacb aacc aace aach aack aact aaea aaec aaha aahk aaka aake aata aatc aatk aatt abaa abab abac abae abak abat abb- abba abbb abbe abbt abca abcb abcc abch abct abec abee abet abha abta ac-t acaa acab acac acae acat acba acca accc acce acch acct ace- acea acec aceh acek acet acha ache achh acht acke acta actc acte acth actt aeac aecb aect aeka aeta aetc aett ahab ahac ahah ahat ahet ahha ahta ahte akaa akae akah akca akee akha akka akte at-t ataa atab atac atae atak atat atca atcc atch atck atea atec atee atha athe atka atkt atta atte baaa baah baak baat baba babb babe bac- baca bacc bace bach back bact baek baha baht bak- baka bake bakh bakt bata batc bate bath batt bbbb bbch bbeb bbet bcaa bcat bcbc bcca bccc bcec bcet bche bctc beah beak beat beba bebb bebe beca bech beck beeb beek beet beka beke beta betc bete beth bett bhat bhca bhcc bhet btaa btcc btec btek bttb caaa caab caac caah caat caba cabe cac- caca cacc cace cach cack caec caha cahe caht caka cake cat- cata catb catc cate cath catt cbac cbat cbbc cbca cbcc cbce cbct cbea cbec cbee cbet cbha cbka cbta cbtc ccaa ccab ccac ccat ccba ccbc ccca cccb cccc ccee ccha cche cctb cctc cctt ceac ceat ceba cec- ceca cece cect ceeb ceec ceke cet- ceta cete chaa chab chac chae chah chak chat chca chce chch chea cheb chec chee cheh chek chet chha chka chkb chkt chtt ckac ckat ckbc ckbe ckch ckck cktb ctab ctae ctba ctca ctec ctta 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 ecka ect- ecta ectc ecth eeca eeea eeee eeka eeke eeta eetc eete eeth ehaa ehcc ehea eheh ehte eka- ekab ekch ekeb ekek eket ekka ekta etah etak etat etbc etcc etch etec etee eth- etha ethe etka etta ette haab haak haat haba habe habt hace hack haec haet haha haht haka hake hakk hata hatb hate hath hatt hcat hcbc hcca hccb hccc hcch heah heat hebb hebe heca hech heck hect heeb heek heet hehe heka heke hekt heta hete heth hett hhaa hhat hhhh hkcc hket htab htcc htea htet kaaa kaab kaak kaat kaba kabb kabc kabe kacb kacc kace kach kact kaeh kaet kaha kahc kahe kaht kaka kakc kake kakh kakk kakt kat- kata katb katc kate kath katk katt kbaa kbab kbac kbae kbak kbat kbba kbbb kbbc kbbe kbbk kbbt kbca kbcb kbce kbch kbck kbct kbeb kbec kbee kbeh kbek kbet kbhb kbhc kbhe kbhh kbht kbkb kbkk kbta kbtb kbtc kbte kbtk kbtt kcaa kcab kcac kcah kcat kcba kcbc kcbk kcca kccb kccc kcck kcct kcea kceb kcec kcee kcet kcha kche kchh kchk kckc kckk kcta kctb kctc kcte kea- keak keat keba kebb kebc kebe kebt keca kech keck keeh keek keet kehk keka kekb kekc keke ket- keta ketc kete keth ketk kett khab khac khak khat khbc khbt khca khcb khcc khch khck khct kheb khec khet khhk khka khke khkk khtb khte khth khtk khtt kkaa kkac kkat kkba kkbb kkbe kkbt kkcb kkch kkck kkct kkea kkha kkhb kkhh kkhk kkkk kktc kktk ktaa ktae ktak ktat ktba ktbb ktbc ktbt ktcc ktce ktch ktck ktea ktec ktee kteh ktek kthc kthe kthh kthk ktht ktkb ktkc ktke ktkk ktkt kttc ktth kttk kttt taa- taat taba tabb tabc tabe taca tacc tace tach tack tact taec taha tahe taka take takk takt tata tatb tate tath tatt tbca tbcb tbcc tbce tbta tcca tccc tch- tcha tche tchh tctc teac teak teat teba teca tech teck tect teec teek teet teka teke tekh teta tete teth tett thaa thae thak that thca thch the- thea theb thec thee thek thet thtb tkac ttab ttbb tttt