-er a-a a-b aaa aab aad aae aar aau ab- aba abb abd abe abr abu ad- ada adb add ade adr adu aea aeb aed aee aer aeu ar- ara arb ard are arr aru au- aua aub aud aue aur b-u baa bab bad bae bar bau bba bbb bbd bbe bbr bbu bda bdb bdd bde bdr bdu be- bea beb bed bee ber beu bra brb brd bre brr bru bua bub bud bue bur buu daa dab dad dae dar dau dba dbb dbd dbe dbr dbu dda ddb ddd dde ddr ddu de- dea deb ded dee der deu dra drb drd dre drr dru dua dub dud due dur eaa eab ead eae ear eau eba ebb ebd ebe ebr ebu ed- eda edb edd ede edr edu eea eeb eed eee eer era erb erd ere err eru eu- eua eub eud eue eur ra- raa rab rad rae rar rau rba rbb rbd rbe rbr rbu rda rdb rdd rde rdr rdu re- rea reb red ree rer reu rra rrb rrd rrr rru rua rub rud rue rur ruu ua- uaa uab uad uae uar uau uba ubb ube ubr ubu uda udb udd ude udr udu uea ueb ued uee uer ur- ura urb urd ure urr uru uua uue uur uuu

a-be aaaa aaab aaad aaae aaar aaba aabb aabd aada aade aadu aaea aara aard aare aaru abaa abab abad abae abar abau abb- abba abbb abbe abbr abda abdu abed abee aber abra abua abud abue adaa adab adad adae adar adba adda addd adde addr addu adea adeb adee ader adra adre adua adub adue adur aede aeer aer- aera aerd arab arad arae arar arau arba arbe arda arde ardu area ared aree areu arr- arra arre arrr arru arua arub arud arue auaa aube aude auer aur- aura aurd aure baaa baad baar baba babb babe babr babu bada badb badd bade badr badu baed baer bar- bara barb bard bare barr baru bau- baud baur bbad bbau bbbb bbdd bbeb bd-r bead bear beau beba bebb bebe beda bede bedu beeb beed beer bera berd bere berr beru beur brab brad brae brau brda brea breb bred bree brer brrr brud brue buad buar buba bubb bube bubu buda budb budd bude budu buea buer bueu bur- bura burb burd bure burr buru daab daad daae daar daau daba dabb dabu dada dade dadu daeb daer daeu dara darb dard dare darr daru daub daud daue daur dbar dddd ddre ddub dead deae dear deau deba debe debu deda dedd dede dedu deeb deed deer der- dera derb dere derr deua deue deur draa drab drad drar drau drba drda drea dred dree drra drua drub drue druu duaa duab duad duar dub- duba dubb dube dubu duda dudd dude dudu duer dura dure duru duur eaba eada eadb eadd eara earb eard eare ebba ebbr ebed eber ebru ebur edad edar edda edde ede- edea eder edra edru edur eede eedu eeea eeee eera erad erau erba erbb erbe erda erde ereb ered erer erra erre erua erub erur euba eude euer eur- eura eure raab raad raba rabb rabe rabu rada radd rade radr radu raed raer rara rarb rare raua raub raud raue rbbb rbbr rder rea- read reae rear reau reba rebb rebe rebu reda redd rede redr redu reeb reed rera rerd rere reru reue reuu rrad rred rrrr ruad ruba rubb rube rubu ruda rudd rude rued ruer rura rurd rure ruru ruud uaru uaua ubar ubba ubbe uber ubra ubud udaa udad udar udau udea uder udra ueba ueda urad urau urba urbe urda urde urdu ure- urea ured urra urre urur uuuu

-aaa- -abad aaaee aabaa aabba aabra aarau abaab ababa ababe ababu abada abade abaer abara abare abaru abbad abbar abbed abbud abbur abead abear abeau abeba abebe abede abeed abeer abera abere aberr abrad abrar abreu abrud abuda abura aburr adaba adabe adada adara adare adber addae addea added adder addra addur adead adear adeeb adeed adeer aderu adrad adrar adree aduba adure aeaea aebbe aered aerru ar-ab arab- araba arabe arada araea arara arare araru arbab arbar arbed arbee arber arbre ardab ardea ardeb ardee arder ardra ardre ardua ardud aread areae arear arede areed arere arrau arrea arrua aruaa aruba arude arura aruru aubad auber audad audea audra audre audru aurad aurae aurar aurea aurra b-e-d baabe baade baaed baard babar babau babee baber babra babur badar badde badea bader badra badur baeda baraa barab barad barar barba barbe barbu barda barde bardu barea bared barer barra barre barru barua barud baude bauer baura baure bauru bbbee bbear bd-re be-er beara beard beare bebad bebar bebed beber bebra bedab bedad bedar bedda bedde bedee beder bedub bedue beebe beede beerd berar berau berba berbe berde berdu berea bered berra berre berru beuda beuer beure brada brade bradu braed brard braud brdda bread breba brebu breda bredd brede breed breer brera brerd brere breu- brrar brrrr brud- brude brued bruer buada bubba bubbe buber budda budde buddu budur buraa burda burde burea burra burru burud d-a-d d-rad daada daara dabar dabba dabbe dabbu daber dabra dabua dabur dadar dadau dadda daded dadra dadur daraa darab darba darbu darda darde dared darer darra darre darur daube dauda dauer daura ddddd deada deadd deade deara deare debab debar debed deber debra dedde dedee deder dedur deear deeba deeda deede deere derbe derde dered derre derub derue deuda deure draba drdre dread drear dreba dredd drede dreed drere drude duara dubar dubau dubba dubee dubra dudar duded duder dudua duere duerr durab durba durbe dured duree durer durra durre e-dee earar eared eaude ebara ebbed ebber ebure edder eddre edera edere edred eduba eeeee eerde erada erade erard erbaa erbar erbbe erber erdre erear ereda erede erere erred eurre ra-ra raaba raabe raard rabab rabad rabba rabbe rabda rabud radar radau radde rader raeda