a-be aaaa aaab aaae aaam aaap aaar aaba aabb aabm aabp aabt aaea aaem aaep aama aamb aame aamo aamp aamr aaoe aaoo aapa aapm aapo aapt aara aare aarm aaro aarp aart aata aatt abaa abab abae abam abap abar abat abb- abba abbb abbe abbo abbr abbt abee aber abet abma abmb abmt aboa abob aboo abor abot abpa abpm abpp abpr abra abro abta aeap aeer aemt aeom aer- aera aero aeta aeto aetr aett amaa amae amam amap amar amat amb- amba ambe ambo ambr amee amer amet amm- amma amme ammo amob amoo amor amot ampa ampe ampm ampo ampt amra amro amta amte amto amtp aoba aoma aopo aora aorb aort apam apao apap apar apat apba apbr apea apem apep aper apet apma apo- apoe apom apoo apop apor apot appa appr appt apra apre apro aprt apta apte aptt arab arae aram arap arar arat arba arbe area aree arem areo arep aret arma arme armm armo armt aroa arob aroe arom aroo aror arpa arpe arr- arra arre arro arrr arrt arta arte arto artr at-t ataa atab atae atap atar atat atea atee atem ateo atep ater atm- atma atme atmo atmp atob atoe atom atop ator atot atpr atra atre atrm atro atrp atta atte atto attp attr baaa baam baar baat baba babb babe babm babo babr baer bama bamb bame bamm bamp bapa bape bapp bapt bar- bara barb bare barm baro barr bart bata bate bato batt bbbb bbeb bbet bbpr beam beap bear beat beba bebb bebe bebo beeb beem beep beer beet bema beme beo- beor beot bepo bera bere berm bero berr bert beta bete beto bett bmaa bmep bmop bmpt boab boar boat boba bobb bobe bobo boea boee boeo boep boer boet boma bomb bome bomp bomt boob booe boom boop boor boot bopa bope bopp bor- bora bore borm boro borr bort bota botb bote boto bott bpea bpoe bpot brab brae bram brao brat brea breb bree brem breo brep brer bret broa brob broe brom broo bror brot brrm brrr btaa btbp btob btor btrt bttb eaba eama eame eaom eaop eapp eara earb eare earo earp eart eata eate ebam ebba ebbo ebbr eber eboe eboo ebor ebpo ebro eeea eeee eemo eera eero eeta eete emae emam emar emba embe embo embr emer emet emma emme emor empa empe empt emra emre emta emte emtp eora eore eota eoto epaa epam epbm epee eper epmo epor epot eppa eppo eppp epra eprb epro eprp epta epte eram erap erat erba erbb erbe ereb erem erer eret erma erme ermo erob eroe eroo erpa erpe erra erre erro erta etam etap etat etbr etee etem eter etoe etra etre etrm etro etta ette etto maaa maam maap maar maat maba mabe mabo maee maem maeo maer mama mame mamo mamp maor mapa mape mapo mapp mapr mar- mara mare marm maro marr mart mata mate mato matr matt mbam mbba mbta meap mear meat mebe mebo meem meep meer meet mema meme memo memr meor mepe mer- mera merb mere merm mero merp mert met- meta mete meto mett mmaa mmab mmap mmar mmea mmmm mmor mmpa mmpr mmrp moaa moab moam moap moar moat moba mobb mobe mobo moea moet moma mome momo mooa moob mooe moop moor moot mopa mope mopp mora morb more moro mort mota motb mote motm moto mott mpaa mpao mppe mppp mpro mprp mpta mptp mrap mrbb mrbm mreb mree mrpa mrta mrtm mrtt mtaa mtab mtap mtbo mtep mtoa mtoe mtom mtor mtpa mtre mtrr mttr o-eo oaer oama oamp oara oare oate obba obbo obea ober obet oboe obor obot obra obre obro oeme oepa oera oere oerm oeta omam omao omap omar ombe ombo omee omeo omer omet omma omo- omoa omoe omoo omor ompa ompt omra omre omro ooaa ooba oobe ooer ooma oome oooo oora oore oort ootb ootp opap opar opep oper opet opo- opor oppa oppo opra opto orab orae oram orao orar orat orba orbb orbe orbo ore- orea oreb orem oreo orer orma orme ormo oro- oroe orom oror orot orpe orra orro orta orte orto otap otar otea otee otem otep oter otma oto- otoe otoo otor otpp otra otre otro otta otte otto paap paar paat paba pabt paea paep paer pam- pama pamb pame pamm pamo pamp papa papb pape papp papr par- para pare parm paro parp parr part pata pate pato patr patt pbar pbmr pbpa peab peap pear peat peba peep peer peet pemt peor pepa pepe pepo per- pera pere perm pero perp perr pert peta pete peto petr pett pmaa pmat pmbr pmma pmmp pmpm pmpo pmrt poar poat poba pobo poea poem poer poet poma pome pomo pomp poop poor poot pop- popa pope popo popp popt pora porb pore poro porr port pota pote poto pott ppap ppar pper ppoa pppa pppo pppp pprm ppta pptt prae pram prao prar prat pre- preb pree prem prep pret pro- proa prob proe prom proo prop prot prrm prtm prtp prtr ptab pter ptmp ptop raab raam raat raba rabb rabe rabo raep raer rama ramb rame ramm ramo ramp raob raom raop rapa rape rapm rapp rapt rara rarb rare raro rata rate rato ratp ratt rbbb rbbr rea- reae ream reao reap rear reat reba rebb rebe rebo reeb reem reep reet rema reme remo remp reop reot repe repo repp repr rept rera rere rero rert reta rete reto retr rett rmrp roab roam roap roar roat rob- roba robb robe robo robt roea roer roet roma romb rome romm romo romp roob room roop roor root ropa rope ropo rora rore roro rort rota rote roto rotr rott rpet rpob rpoe rpta rrat rrmp rrrr rtee rtmp rtpa rttp t-mo taa- taar taat taba tabb tabe tabo taem taer tama tame tamm tamo tamp taoa taom taor tapa tape