a-ha aaaa aaab aaad aaaf aaah aaar aaba aabb aabd aabh aabt aada aadt aafa aafb aafd aaff aaha aara aard aart aata aatf aatt abaa abab abad abaf abar abat abb- abba abbb abbr abbt abda abff abha abhr abra abta adaa adab adad adah adar adat adba adda addd addr adfa adha adhd adra adta afaa afad afar afat afdb affa afft afr- afra afta ahab ahad ahah ahar ahat ahfa ahha ahra ahrr ahta arab arad araf arah arar arat arba arbh arda ardf arfa arfb arff arft arh- arr- arra arrh arrr arrt arta arth artr at-t ataa atab atad atar atat atdt atfb atha atra atta attr baaa baad baaf baah baar baat baba babb babr bada badb badd badh badr baff baft baha bahr baht bar- bara barb bard barf barh barr bart bata batf bath batt bbad bbbb bbdd bd-r bddh bfta bftt bhar bhat bhff bhra bhrt brab brad braf brah brat brda brdt brrr btaa btaf btdt btrt bttb daab daad daar daba dabb dabt dada dafa daff daft daha dara darb dard darf darr dart data datr datt dbar dbtt dddd dfaf dfdt dffa dfrf dftr dhaa dhad dhar dhat draa drab drad draf drar drat drba drda drra dtaa dthd faaa faad faah faba fabd fada fadd fafa faff faha fahd fahr fara farb fard farr fart fata fatf fath fatt fbar ffar ffff ffrr fftf frab frad frat frta haab haad haaf haar haat haba habt hada hadf hadh hafb hafd haff haft haha haht hara hard harf harh harr hart hata hatb hath hatt hbar hdda hdra hdtt hfba hhaa hhat hhhh hrad hrta hrtb htab htra httr raab raad raaf raat raba rabb rada radd radh radr radt rafa raff raft raha rahr raht rara rarb rarf rata ratf rath ratt rbaf rbbb rbbr rdfa rrad rrah rrat rrrr rtbf rtdt rtfb taa- taaf taar taat taba tabb tada tafa taff taft taha tahr tara tarb tard tarf tarr tart tata tatb tath tatr tatt tbaf tbar tbrb tbta tddb tdff tdra thaa thad thar that thdr thra thtb thtr traa trab trad traf trat trfd trfr trra trtr ttab ttbb ttfa ttff tttt