a-be aaaa aaab aaae aaal aaar aaba aabb aabl aaea aala aale aall aalo aalu aaoe aaoo aara aare aaro aaru abaa abab abae abal abar abau abb- abba abbb abbe abbo abbr abee abel aber abla able ablo aboa abob abol aboo abor abou abra abro abua abue abul aeer aela aer- aera aero alaa alae alal alao alar alau alb- alba albe albo albu alea alee aleo aler aleu all- alla alle alll allo allr allu aloa aloe alol aloo alor alou alro alua alur aoba aoeu aola aole aora aorb aoul arab arae aral arar arau arba arbe area aree arel areo areu arla arle arlo aroa arob aroe aroo aror arr- arra arre arro arrr arru arua arub arue arul auaa aube auel auer aul- aula aule aull aulo aulu auol aur- aura aure auro baaa baal baar baba babb babe babo babr babu bael baer bala bale ball balo balu baol bar- bara barb bare baro barr baru bau- baul baur bbau bbbb bbeb bblb beal bear beau beba bebb bebe bebo beeb beel beer bela bele bell belo belu beo- beor bera bere bero berr beru beur blaa blab blae blau blea bleb blee bleo bleu blob bloo blou blub blue blur boab boal boar boba bobb bobe bobo bobu boea boee boel boeo boer bola bole boll bolo bolu boob booe bool boor bor- bora bore boro borr boru boua boue boul bour brab brae brao brau brea breb bree brel breo brer broa brob broe brol broo bror brou brrr brue bual buar buba bubb bube bubo bubu buea buel buer bueu bula bulb bule bull bulu buol bur- bura burb bure burl buro burr buru e-la eaba eala eale eara earb eare earl earo ebal ebba ebbo ebbr ebel eber ebla eboe ebol eboo ebor ebro ebru ebul ebur eeea eeee eele eera eero el-b elab elal elar elba elbe elbo elbu elea elee eleo eler ella elle ello ellu elra elro elue elul eola eole eolo eora eore eorl eral erau erba erbb erbe ereb erel erer erla erle erll erob eroe erol eroo erra erre erro erua erub erur euba euer eula eule eur- eura eure euro laaa laal laar laba labe labo labr labu lael laer lala lale lall lalo lalu laou lara larb lare larr laru laub laue laul laur lbar lblr le-u leaa leal leao lear leau leba lebo lebu leea leel leer lela lele lell lelo lelu leor leou lera lere lero leur llao lleu llll lloa lloo loar lob- loba lobb lobe lobo loeb loeu lola lole loll lolo loob looe lool loor lora lore loro loue loul lour louu lral lrba lrrr luau luba lube luer lula lule lull lulu lura lure luua o-eo oaau oaer oall oara oare obal obba obbo obea obel ober obla oble oblu oboe obol obor obra obre obro oela oele oera oere olar olba olbo ole- olea oleo oler olla olle ollo olor olur ooaa ooba oobe ooer oola oolo oooo oora oore orab orae oral orao orar orba orbb orbe orbo orbu ore- orea oreb orel oreo orer orla orle orlo orlu oro- oroe oror orra orro orub ouea ouer oula oule oulu our- oura oure ouro ouu- raab raba rabb rabe rabl rabo rabu rael raer rala ralb rale rall ralo raob raol rara rarb rare raro raua raub raue raul rbbb rbbr rble rea- reae real reao rear reau reba rebb rebe rebo rebu reeb reel rela relb rele rell relo reol reou rera rere rero reru reue reul reuu rlab rlee rleu rlua roab roar rob- roba robb robe robo robu roea roel roer rola role roll rolo roob rool roor rora rore roro roru roua roub roue roul rrle rrrr ruba rubb rube rubu ruel ruer rula rule rull rulo rura rure ruro ruru uaru uaua ubal ubar ubba ubbe ubbo uber ubla uble ublo ubra ueba uele uell ulaa ulae ular ulea uleb ulee uleo ulla ulle ullo ullr ulo- ulua ulul uor- uore ural urao urau urba urbe ure- urea urla urle uro- uroa urol uroo urra urre urur uulu uuuu