a-be a-do aaaa aaab aaad aaae aaar aaba aabb aabd aada aade aadu aaea aaoe aaoo aara aard aare aaro aaru abaa abab abad abae abar abau abb- abba abbb abbe abbo abbr abda abdo abdu abed abee aber aboa abob abod aboo abor abou abra abro abua abud abue adaa adab adad adae adao adar adba adda addd adde addo addr addu adea adeb adee adeo adeq ader adob adod adoe adoo ador adq- adra adre adro adua adub adue adur aede aeer aer- aera aerd aero aoba aoeu aora aorb aqar aqda aqra aqu- aqua aque aquo arab arad arae araq arar arau arba arbe arda arde ardo ardu area ared aree areo areu aroa arob arod aroe aroo aror arq- arqa arr- arra arre arro arrr arru arua arub arud arue aruq auaa aube aude audo auer aur- aura aurd aure auro baaa baad baar baba babb babe babo babr babu bada badb badd bade bado badr badu baed baer baqa bar- bara barb bard bare baro barq barr baru bau- baud baur bbad bbau bbbb bbbq bbdd bbdo bbeb bd-r bead bear beau beba bebb bebe bebo beda bede bedo bedu beeb beed beer beo- beod beor beqa bera berd bere bero berr beru beur boab boad boar boba bobb bobe bobo bobu boda bodb bode bodo bodu boea boee boeo boer boob bood booe boor boqe bor- bora bord bore boro borr boru boua boud boue bour bque brab brad brae brao brau brda brdo brea breb bred bree breo brer broa brob brod broe broo bror brou brrr brud brue buad buar buba bubb bube bubo bubq bubu buda budb budd bude budo budu buea buer bueu buqa bur- bura burb burd bure buro burr buru d-bo daab daad daae daar daau daba dabb dabo dabu dada dade dado dadu daeb daer daeu daou dara darb dard dare daro darr daru daub daud daue daur dbar dddd ddre ddub dead deae dear deau deba debe debu deda dedd dede dedo dedu deeb deed deer deor der- dera derb dere dero derr deua deue deur doab doae doar doba dobb dobe dobu dod- doda dodd dode dodo doea doer doob dood door dora dord dore doro dorr doru doub doud doue dour dqdb dqed draa drab drad drar drau drba drda drea dred dree drob drod drou drra drua drub drue druu duaa duab duad duar dub- duba dubb dube dubu duda dudd dude dudo dudu duer duo- duqu dura dure duro duru duur eaba eada eadb eadd eara earb eard eare earo ebba ebbo ebbr ebed eber eboe eboo ebor ebro ebru ebur edad edar edda edde eddo ede- edea eder edod edou edra edru edur eede eedu eeea eeee eera eero eode eora eore eqao eqed equ- equa eque equo erad erau erba erbb erbe erda erde ereb ered erer erob erod eroe eroo erra erre erro erua erub erur euba eude euer eur- eura eure euro o-eo oaau oade oaer oara oare obad obba obbo obea obed ober oboe oboq obor obra obre obro odbo odda oddd odea oded odeo oder odoo odor odou odra odur oedo oera oere ooaa ooba oobe ooda ooer oooo oora oord oore oque orab orad orae orao orar orba orbb orbe orbo orbu orda orde ordo ordu ore- orea oreb ored oreo orer oro- oroe oror orra orro orub ouad oude ouea oued ouer our- oura oure ouro ouu- q-be qabo qada qadr qara qare qaru qdro qere qero qerq qobu qoob qore qqqq quaa quab quad quae quar quba qube qubo qued quee quer quob quod quor qurd quro quu- raab raad raba rabb rabe rabo rabu rada radd rade rado radr radu raed raer raob rara rarb rare raro raua raub raud raue rbbb rbbr rder rea- read reae reao rear reau reba rebb rebe rebo rebu reda redd rede redo redq redr redu reeb reed reod reou reqa reqd rera rerd rere rero reru reue reuu roab road roar rob- roba robb robe robo robu roda rodd rode rodo roea roed roer roob rood roor rora rore roro roru roua roub roud roue rqda rrad rred rrrr ruad ruba rubb rube rubu ruda rudd rude rudo rued ruer rura rurd rure ruro ruru ruud uaru uaua ubar ubba ubbe ubbo uber ubod ubra ubud udaa udad udar udau udea uder udoo udra ueba ueda uor- uore uqao uqar urad urao urau urba urbe urda urde urdu ure- urea ured uro- uroa uroo urra urre uruq urur uuuu