a-be aaaa aaab aaae aaam aaap aaar aaba aabb aabm aabp aaea aaem aaep aama aamb aame aamo aamp aamr aaoe aaoo aapa aapm aapo aara aare aarm aaro aarp abaa abab abae abam abap abar abb- abba abbb abbe abbo abbr abee aber abma abmb aboa abob aboo abor abpa abpm abpp abpr abra abro aeap aeer aeom aer- aera aero amaa amae amam amap amar amb- amba ambe ambo ambr amee amer amm- amma amme ammo amob amoo amor ampa ampe ampm ampo amra amro aoba aoma aopo aora aorb apam apao apap apar apba apbr apea apem apep aper apma apo- apoe apom apoo apop apor appa appr apra apre apro arab arae aram arap arar arba arbe area aree arem areo arep arma arme armm armo aroa arob aroe arom aroo aror arpa arpe arr- arra arre arro arrr baaa baam baar baba babb babe babm babo babr baer bama bamb bame bamm bamp bapa bape bapp bar- bara barb bare barm baro barr bbbb bbeb bbpr beam beap bear beba bebb bebe bebo beeb beem beep beer bema beme beo- beor bepo bera bere berm bero berr bmaa bmep bmop boab boar boba bobb bobe bobo boea boee boeo boep boer boma bomb bome bomp boob booe boom boop boor bopa bope bopp bor- bora bore borm boro borr bpea bpoe brab brae bram brao brea breb bree brem breo brep brer broa brob broe brom broo bror brrm brrr eaba eama eame eaom eaop eapp eara earb eare earo earp ebam ebba ebbo ebbr eber eboe eboo ebor ebpo ebro eeea eeee eemo eera eero emae emam emar emba embe embo embr emer emma emme emor empa empe emra emre eora eore epaa epam epbm epee eper epmo epor eppa eppo eppp epra eprb epro eprp eram erap erba erbb erbe ereb erem erer erma erme ermo erob eroe eroo erpa erpe erra erre erro maaa maam maap maar maba mabe mabo maee maem maeo maer mama mame mamo mamp maor mapa mape mapo mapp mapr mar- mara mare marm maro marr mbam mbba meap mear mebe mebo meem meep meer mema meme memo memr meor mepe mer- mera merb mere merm mero merp mmaa mmab mmap mmar mmea mmmm mmor mmpa mmpr mmrp moaa moab moam moap moar moba mobb mobe mobo moea moma mome momo mooa moob mooe moop moor mopa mope mopp mora morb more moro mpaa mpao mppe mppp mpro mprp mrap mrbb mrbm mreb mree mrpa o-eo oaer oama oamp oara oare obba obbo obea ober oboe obor obra obre obro oeme oepa oera oere oerm omam omao omap omar ombe ombo omee omeo omer omma omo- omoa omoe omoo omor ompa omra omre omro ooaa ooba oobe ooer ooma oome oooo oora oore opap opar opep oper opo- opor oppa oppo opra orab orae oram orao orar orba orbb orbe orbo ore- orea oreb orem oreo orer orma orme ormo oro- oroe orom oror orpe orra orro paap paar paba paea paep paer pam- pama pamb pame pamm pamo pamp papa papb pape papp papr par- para pare parm paro parp parr pbar pbmr pbpa peab peap pear peba peep peer peor pepa pepe pepo per- pera pere perm pero perp perr pmaa pmbr pmma pmmp pmpm pmpo poar poba pobo poea poem poer poma pome pomo pomp poop poor pop- popa pope popo popp pora porb pore poro porr ppap ppar pper ppoa pppa pppo pppp pprm prae pram prao prar pre- preb pree prem prep pro- proa prob proe prom proo prop prrm raab raam raba rabb rabe rabo raep raer rama ramb rame ramm ramo ramp raob raom raop rapa rape rapm rapp rara rarb rare raro rbbb rbbr rea- reae ream reao reap rear reba rebb rebe rebo reeb reem reep rema reme remo remp reop repe repo repp repr rera rere rero rmrp roab roam roap roar rob- roba robb robe robo roea roer roma romb rome romm romo romp roob room roop roor ropa rope ropo rora rore roro rpob rpoe rrmp rrrr