a-be a-wa aaaa aaab aaae aaap aaar aaba aabb aabp aabt aabw aaea aaep aaoe aaoo aaow aapa aapo aapt aara aare aaro aarp aart aata aatt aatw aawt aaww abaa abab abae abap abar abat abaw abb- abba abbb abbe abbo abbr abbt abee aber abet aboa abob aboo abor abot abow abpa abpp abpr abra abro abta abwa abwe abwr aeap aeer aer- aera aero aeta aeto aetr aett aoba aopo aora aorb aort apao apap apar apat apaw apba apbr apea apep aper apet apo- apoe apoo apop apor apot appa appr appt apra apre apro aprt apta apte aptt apwa arab arae arap arar arat araw arba arbe area aree areo arep aret arew aroa arob aroe aroo aror arow arpa arpe arr- arra arre arro arrr arrt arta arte arto artr arwa arwe at-t ataa atab atae atap atar atat atea atee ateo atep ater atew atob atoe atop ator atot atpr atra atre atro atrp atta atte atto attp attr atwa atwo atwt awae awar awbe awe- aweb awee awer awet awoo awow awpp awre awro awwa baaa baar baat baba babb babe babo babr baer bapa bape bapp bapt bar- bara barb bare baro barr bart bata bate bato batt baw- bawe bbbb bbeb bbet bbpr bbwr beap bear beat beaw beba bebb bebe bebo beeb beep beer beet beo- beor beot bepo bera bere bero berr bert beta bete beto bett betw bewa bewe boab boar boat boba bobb bobe bobo bobw boea boee boeo boep boer boet boob booe boop boor boot boow bopa bope bopp bor- bora bore boro borr bort borw bota botb bote boto bott botw bowa bowe bowr bowt bpea bpoe bpot brab brae brao brat braw brea breb bree breo brep brer bret brew broa brob broe broo bror brot brow brrr brwe btaa btbp btob btor btrt bttb btwo bwaa eaba eaop eapp eara earb eare earo earp eart earw eata eate ebba ebbo ebbr ebbw eber eboe eboo ebor ebow ebpo ebro eeea eeee eera eero eeta eete eora eore eota eoto eotw epaa epee eper epor epot eppa eppo eppp epra eprb epro eprp epta epte erap erat erba erbb erbe ereb erer eret erew erob eroe eroo erpa erpe erra erre erro erta erwt etap etat etbr etee eter etoe etra etre etro etta ette etto ewer ewew ewre ewte o-eo oaer oara oare oate obba obbo obea ober obet oboe obor obot obra obre obro oepa oera oere oeta ooaa ooba oobe ooer oooo oora oore oort ootb ootp ootw opap opar opep oper opet opo- opor oppa oppo opra opto orab orae orao orar orat orba orbb orbe orbo ore- orea oreb oreo orer oro- oroe oror orot orpe orra orro orta orte orto orwa orwe orwo otap otar otea otee otep oter oto- otoe otoo otor otow otpp otpw otra otre otro otta otte otto otwo owar owea ower owoe owow owpe owre owt- owte owtt owwa paap paar paat paba pabt paea paep paer papa papb pape papp papr par- para pare paro parp parr part pata pate pato patr patt pawa pawb pawe pawo pawr pbar pbpa peab peap pear peat peaw peba peep peer peet peor pepa pepe pepo per- pera pere pero perp perr pert peta pete peto petr pett pewe poar poat poba pobo poea poer poet poop poor poot pop- popa pope popo popp popt pora porb pore poro porr port pota pote poto pott potw powa powe powp powr powt ppap ppar pper ppoa pppa pppo pppp ppta pptt prae prao prar prat praw pre- preb pree prep pret prew pro- proa prob proe proo prop prot prow prtp prtr ptab pter ptop pwaa pwba raab raat raba rabb rabe rabo raep raer raob raop rapa rape rapp rapt rara rarb rare raro rata rate rato ratp ratt rawa rawe rawr raww rbbb rbbr rea- reae reao reap rear reat reba rebb rebe rebo reeb reep reet reop reot repe repo repp repr rept rera rere rero rert reta rete reto retr rett rewa rewe roab roap roar roat rob- roba robb robe robo robt roea roer roet roob roop roor root ropa rope ropo rora rore roro rort rota rote roto rotr rott rowa rowb rowe rowp rowr rowt roww rpet rpob rpoe rpta rrat rrrr rtee rtpa rttp taa- taar taat taba tabb tabe tabo taer taoa taor tapa tape tapo tapp tapr tapt tara tarb tare taro tarp tarr tart tata tatb tate tato tatr tatt tawa tawe tawo tawt taww tbar tbrb tbta tbtp tear teat teaw teba tebo teer teet teor teow tepa tepe tepp ter- tera tere tero terp terr teta tete teto tetr tett tewa tewo toab toat toaw toba tobe tobo tobt toea toee toer toet tooa toor toot top- topa tope topo topp topt tora tore toro torp torr tort tota tote toto totr tott towa towe tpap tper tppa tppp tppr tprw tpte tptp tptr traa trab trae trao trap trat traw tre- trea tree treo tret trew troa troe troo trop trot trow trpa trpe trpp trra trte trtr trwe ttab ttbb tteo tter ttoe ttop tttt twae twat twbt twee twep twer two- twoa twob twoo twop twot twrp waaa waao waar waat waaw waba wabb wabe wabo wabr wabt wabw waeb waee waer waet waew waob waoe waoo waor waow wapa wapb wape wapo wapp wapr wapt wapw war- wara warb ware waro warp warr wart warw wata watb wate wato watr watt watw wawa wawb wawe wawo wawt wbaa wbab wbae wbap wbar wbat wbbb wbbe wbbo wbbp wbbr wbbt wbbw wbea wbeb wber wbet wbew wbob wbop wbor wbow wbpe wbpt wbpw wbrb wbrp wbrr wbrt wbrw wbta wbte wbto wbtp wbtr wbtt wbtw wbwb wbwo wbwt weaa weao weap wear weat webb webe webo webp webt weeb weeo weep weer weet weoa weop weow wepa wepe wepp wepr wept wer- wera werb were wero werp werr