a-ha a-wa aaaa aaab aaac aaah aaar aaba aabb aabc aabh aabt aabw aaca aacb aacc aach aacr aact aaha aara aarc aart aata aatc aatt aatw aawt aaww abaa abab abac abar abat abaw abb- abba abbb abbr abbt abca abcb abcc abch abcr abct abcw abha abhr abra abrc abta abwa abwh abwr ac-t acaa acab acac acar acat acba acca accc acch acct acha achh achr acht acr- acra acrc acrr acta actc acth actt acwa acww ahab ahac ahah ahar ahat ahha ahra ahrc ahrr ahta ahwa arab arac arah arar arat araw arba arbh arc- arca arch arct arh- arr- arra arrc arrh arrr arrt arta artc arth artr arwa at-t ataa atab atac atar atat atca atcc atch atcr atha atra atrc atta attr atwa atwt awac awar awwa baaa baah baar baat baba babb babr bac- baca bacc bach bact baha bahr baht bar- bara barb barc barh barr bart bata batc bath batt baw- bbbb bbch bbrc bbwc bbwr bcaa bcar bcat bcbc bcca bccc bcra bctc bhar bhat bhca bhcc bhra bhrt brab brac brah brat braw brca brcb brcw brrr brtc btaa btcc btrc btrt bttb btwc bwaa caaa caab caac caah caat caba cac- caca cacc cach cacr cacw caha caht cara carb carc carr cart cat- cata catb catc cath catt catw cbac cbar cbat cbbc cbca cbcc cbcr cbct cbha cbrh cbrt cbta cbtc cbwa ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccha cchr ccra ccrc ccrt cctb cctc cctt chaa chab chac chah char chat chaw chca chch chha chra chrb chrc chrr chrt chrw chtr chtt crab crac crar crat craw crbc crca crcc crcr crrt crtc ctab ctba ctca ctrc ctta cttw cwac cwrw haab haar haat haba habt haha haht hara harc harh harr hart hata hatb hath hatt hawa hawc hawt hbar hcat hcaw hcbc hcca hccb hccc hcch hhaa hhat hhhh hrac hrrc hrta hrtb htab htcc htra httr raab raat raba rabb rac- raca racc rach ract raha rahr raht rara rarb rata rath ratt rawa rawr raww rbbb rbbr rcac rcbc rccb rccc rchb rctc rhaw rrah rrat rrrr rtca rtcc rwch taa- taar taat taba tabb tabc taca tacc tach tact taha tahr tara tarb tarc tarr tart tata tatb tath tatr tatt tawa tawt taww tbar tbca tbcb tbcc tbrb tbta tcca tccc tch- tcha tchh tchr tctc thaa thar that thaw thca thch thra thrw thtb thtr thwa traa trab trac trat traw trca trcc trra trtc trtr ttab ttbb tttt twat twbt twch waaa waac waah waar waat waaw waba wabb wabc wabh wabr wabt wabw waca wacb wacc wach wact waha wahb wahr waht war- wara warb warc warh warr wart warw wata watb watc wath watr watt watw wawa wawb wawc wawt wbaa wbab wbac wbar wbat wbbb wbbr wbbt wbbw wbca wbcb wbch wbcr wbct wbcw wbha wbhb wbhc wbhh wbhr wbht wbhw wbrb wbrc wbrh wbrr wbrt wbrw wbta wbtc wbth wbtr wbtt wbtw wbwb wbwc wbwt wcab wcar wcat wcba wcbc wcbh wcbr wcbt wcbw wcca wccb wccc wcch wccr wcct wccw wcha wchb wchc wchr wcht wcra wcrb wcrc wcrh wcrr wcrt wcrw wcta wctb wctc wcth wctr wctt wctw wcwa wcwb wcwc whaa whab whac whar what whaw whbb whbc whbr whbt whca whcb whcc whcr whct whhb whhh whhr whht whhw whr- whrb whrc whrh whrw whta whtb whtc whth whtt whwa whwb whwc whwh wraa wrab wrac wrah wrar wrat wraw wrba wrbb wrbc wrbh wrbt wrbw wrca wrcb wrch wrcr wrct wrcw wrha wrhc wrht wrra wrrb wrrc wrrh wrrw wrta wrtb wrtc wrth wrtr wrtw wrwa wrwb wrwc wrwh wrwr wtab wtac wtar wtaw wtbb wtbc wtbh wtbr wtca wtcb wtcc wtch wtcr wtct wtcw wthb wthr wtht wtrb wtrc wtrh wtrt wtrw wtta wttb wttc wtth wttr wttt wttw wtwa wtwb wtwr wtwt wtww wwab wwac wwba wwbb wwbc wwbr wwbt wwca wwcb wwch wwcr wwct wwcw wwhb wwhr wwht wwra wwrb wwrc wwrr wwrw wwta wwtc wwth wwtr wwtw wwwa wwwc wwwh wwwr wwww