a-be aaaa aaab aaae aaar aaba aabb aabt aaea aara aare aart aaru aata aatt abaa abab abae abaj abar abat abau abb- abba abbb abbe abbr abbt abee aber abet abra abta abtu abua abue abut aeer aer- aera aeta aetr aett ajab ajar ajat ajba ajee ajet ajur arab arae arar arat arau arba arbe area aree aret areu arja arje arju arr- arra arre arrr arrt arru arta arte artr arua arub arue arut at-t ataa atab atae atar atat atea atee ater atra atre atru atta atte attr attu atua atub atur auaa aube auer auja aur- aura aure aut- aute baaa baar baat baba babb babe babr babu baer baja baju bar- bara barb bare barr bart baru bata bate batt batu bau- baur bbau bbbb bbeb bbet bear beat beau beba bebb bebe beeb beej beer beet beja bera bere berr bert beru beta bete bett betu beur brab brae braj brat brau brea breb bree brer bret brje brrr brue brut btaa btrt bttb buar buat buba bubb bube bubu buea buer bueu buja buje buju bur- bura burb bure burj burr burt buru but- buta bute butt eaba eara earb eare eart eata eate ebba ebbr eber ebru ebur eeea eeee eera eeta eete eetu ejer erat erau erba erbb erbe ereb erer eret erja erra erre erta ertu erua erub erur etat etbr etee eter etra etre etta ette ettu etua euba euer eur- eura eure eurt jaar jaba jabr jaer jaja jaju jara jare jarr jart jaru jatu jaur jbaa jbar jear jeat jebb jebe jeer jeet jeju jera jere jert jeru jeta jetb jete jett jeur jjar jrbr jtar juab juar juba jube jubu juja juju jura jure jurr juta jute raab raaj raat raba rabb rabe rabu raer raja raje raju rara rarb rare rata rate ratt ratu raua raub raue raut rbbb rbbr rea- reae rear reat reau reba rebb rebe rebu reeb reet reja rera rere rert reru reta rete retr rett reue reut reuu rrat rrrr rtee ruba rubb rube rubu ruer ruet ruja rura rure ruru ruta rute rutt rutu taa- taar taat taba tabb tabe tabu taer taju tara tarb tare tarr tart taru tata tatb tate tatr tatt tatu taua taub taue taur taut tbar tbrb tbta tear teat teba tebu teej teer teet teja teju ter- tera tere terj terr teru teta tete tetr tett tetu teut traa trab trae trat trau tre- trea tree tret treu trra trte trtr trub true trut truu ttab ttbb tter tttt tuae tuar tuat tuba tubb tube tubr tubu tuer tuet tuja tura turb ture turr turt turu tuta tute tutt tutu uart uaru uata uatu uaua ubar ubba ubbe uber ubet ubja ubra ueba urat urau urba urbe ure- urea uret urra urre urte urur urut utau uter uttu uuta uuuu