a-ha a-wa aaaa aaab aaac aaah aaar aaba aabb aabc aabh aabt aabw aaca aacb aacc aach aaco aacr aact aaha aaoo aaow aara aarc aaro aart aata aatc aatt aatw aawt aaww abaa abab abac abar abat abaw abb- abba abbb abbo abbr abbt abca abcb abcc abch abcr abct abcw abha abho abhr aboa abob aboh aboo abor abot abow abra abrc abro abta abwa abwh abwr ac-t acaa acab acac acar acat acba acca accc acch acco acct acha achh acho achr acht acoa acoh acor acot acow acr- acra acrc acro acrr acta actc acth acto actt acwa acww ahab ahac ahah ahar ahat ahha ahoa ahor ahot ahra ahrc ahrr ahta ahto ahwa aoah aoba aoca aora aorb aort aotc arab arac arah arar arat araw arba arbh arc- arca arch arco arct arh- aroa arob aroo aror arow arr- arra arrc arrh arro arrr arrt arta artc arth arto artr arwa at-t ataa atab atac atar atat atca atcc atch atco atcr atha atho atob atoc ator atot atra atrc atro atta atto attr atwa atwo atwt awac awar awho awoo awow awro awwa baaa baah baar baat baba babb babo babr bac- baca bacc bach baco bact baha baho bahr baht baoh bar- bara barb barc barh baro barr bart bata batc bath bato batt baw- bbbb bbch bbrc bbwc bbwr bcaa bcar bcat bcbc bcca bccc bcor bcra bctc bhao bhar bhat bhca bhcc bhor bhot bhra bhrt boab boac boar boat boba bobb bobo bobw boca boch boco boha boho bohr boht bohw boob booc booh boor boot boow bor- bora borh boro borr bort borw bota botb both boto bott botw bowa bowr bowt brab brac brah brao brat braw brca brcb brcw broa brob broc broh broo bror brot brow brrr brtc btaa btcc btob btor btrc btrt bttb btwc btwo bwaa bwoc c-bo caaa caab caac caah caat caba cabo cac- caca cacc cach caco cacr cacw caha caht caor cara carb carc caro carr cart cat- cata catb catc cath cato catt catw cbac cbar cbat cbbc cbca cbcc cbcr cbct cbha cbot cbrh cbrt cbta cbtc cbwa ccaa ccab ccac ccar ccat ccba ccbc ccca cccb cccc ccha cchr ccob ccoc ccow ccra ccrc ccrt cctb cctc cctt chaa chab chac chah chao char chat chaw chca chch chha choc choh choo chor chow chra chrb chrc chro chrr chrt chrw chto chtr chtt chwo coat coba cobb cobh cobo coca coch coco coct coha coho coob cooh coot cor- cora corb corc coro corr cort cota cotb cotc coth coto cott cotw cowh cowt crab crac crar crat craw crbc crca crcc crcr crob croc croh croo cror crot crow crrt crtc ctab ctba ctca ctor ctot ctrc ctta cttw cwac cwot cwrw haab haar haat haba habo habt haco haha haho haht haor hara harc harh haro harr hart hata hatb hath hato hatt hawa hawc hawt hbar hboc hcat hcaw hcbc hcca hccb hccc hcch hhaa hhat hhhh hoac hoar hoat hoba hobo hoca hoch hocr hoha hoho hoor hoot hora horc horo horr hort horw hota hotb hoth hoto hotr hott hotw howa howh howr howt hrac hrob hrrc hrta hrtb htab htcc htoh htra httr oara oath obba obbo obor obot obra obrh obro ocab ocac ocat ocbc occa occc occt ocha ocht ocra ocro ocrr oct- octa octo ohaw ohba ohcc ohho ohob ohoh ohow ohra ohta ohto ooaa ooba oocr ooha ooho oooh oooo oora oort ootb ootw orab orac orah orao orar orat orba orbb orbo orca orch orco oro- oror orot orra orro orta ortc orth orto orwa orwo otac otar otha otho othr oto- otoh otoo otor otow otra otro otta otto otwo owar owch owoh owow owt- owth owtt owwa raab raat raba rabb rabo rac- raca racc rach raco ract raha rahr raht raob raoc raoh rara rarb raro rata rath rato ratt rawa rawr raww rbbb rbbr rboh rcac rcbc rcbo rccb rccc rchb rctc rhaw rhoa rhob rhoc rhoh roab roar roat rob- roba robb robo robt roca rocc roch roco roha rohr roob roor root rora rorc roro rort rota rotc roth roto rotr rott rowa rowb rowh rowr rowt roww rrah rrat rrrr rtca rtcc rwch taa- taar taat taba tabb tabc tabo taca tacc tach taco tact taha taho tahr taoa taor tara tarb tarc taro tarr tart tata tatb tath tato tatr tatt tawa tawo tawt taww tbar tbca tbcb tbcc tbrb tbta tcca tccc tch- tcha tchh tcho tchr tctc thaa thao thar that thaw thca thch thoo thor thot thow thra thro thrw thtb thtr thwa toab toat toaw toba tobo tobt toca toch toco toho tooa tooh toor toot tora torc toro torr tort tota totc toth toto totr tott towa towh traa trab trac trao trat traw trca trcc troa troc troo trot trow trra trtc trtr ttab ttbb tttt twat twbt twch two- twoa twob twoc twoh twoo twot waaa waac waah waao waar waat waaw waba wabb wabc wabh wabo wabr wabt wabw waca wacb wacc wach waco wact waha wahb wahr waht waob waoc waoh waoo waor waow war- wara warb warc warh waro warr wart warw wata watb watc wath wato watr watt watw wawa wawb wawc wawo wawt wbaa wbab wbac wbar wbat wbbb wbbo wbbr wbbt wbbw wbca wbcb wbch wbco wbcr wbct wbcw wbha wbhb wbhc wbhh wbhr wbht wbhw wbob wboc wbor wbow wbrb wbrc wbrh wbrr wbrt wbrw wbta wbtc wbth wbto wbtr wbtt wbtw wbwb wbwc wbwo wbwt wcab wcao wcar wcat wcba wcbc wcbh wcbr wcbt wcbw wcca wccb wccc wcch wcco wccr wcct wccw wcha wchb wchc wcho wchr wcht wcoa wcob wcoc wcoh wcoo wcor wcot wcra wcrb wcrc wcrh wcro wcrr wcrt wcrw wcta wctb wctc wcth wcto wctr wctt wctw wcwa wcwb wcwc whaa whab whac whar what whaw whbb whbc whbo whbr whbt whca whcb whcc whco whcr