a-be a-wa aaaa aaab aaad aaae aaar aaba aabb aabd aabt aabw aada aade aadt aadu aaea aara aard aare aart aaru aata aatt aatw aauw aawt aaww abaa abab abad abae abar abat abau abaw abb- abba abbb abbe abbr abbt abda abdu abed abee aber abet abra abta abtu abua abud abue abut abwa abwe abwr abwu adaa adab adad adae adar adat adaw adba adda addd adde addr addu adea adeb adee ader adet adew adra adre adta adua adub adue adur adwa aede aedt aeer aer- aera aerd aeta aetr aett arab arad arae arar arat arau araw arba arbe arda arde ardu area ared aree aret areu arew arr- arra arre arrr arrt arru arta arte artr arua arub arud arue arut arwa arwe at-t ataa atab atad atae atar atat atdt atea ated atee ater atew atra atre atru atta atte attr attu atua atub atur atwa atwt atwu auaa aube aude auer auew aur- aura aurd aure aut- aute auwa auwe awad awae awar awbe awe- aweb awed awee awer awet awre awwa baaa baad baar baat baba babb babe babr babu bada badb badd bade badr badu baed baer bar- bara barb bard bare barr bart baru bata bate batt batu bau- baud baur baw- bawd bawe bawu bbad bbau bbbb bbdd bbeb bbet bbwr bd-r bead bear beat beau beaw beba bebb bebe beda bede bedu beeb beed beer beet bera berd bere berr bert beru beta bete bett betu betw beur bewa bewe brab brad brae brat brau braw brda brdt brea breb bred bree brer bret brew brrr brud brue brut brwe btaa btdt btrt bttb buad buar buat buba bubb bube bubu buda budb budd bude budu buea buer bueu bur- bura burb burd bure burr burt buru but- buta bute butt buwa buwe bwaa daab daad daae daar daau daba dabb dabt dabu dada dade dadu daeb daer daeu dara darb dard dare darr dart daru data date datr datt datu daub daud daue daur daut dauw dawa dawd dawe dawr dawt dawu dbar dbtt dddd ddre ddub dead deae dear deau deaw deba debe debt debu deda dedd dede dedu deeb deed deer deet der- dera derb dere derr deta dete detr deua deue deur deut dewa dewe draa drab drad drar drat drau draw drba drda drea dred dree dret drew drra drua drub drue drut druu dtaa dted duaa duab duad duar duat dub- duba dubb dube dubu duda dudd dude dudu duer duet dura dure durt duru duta dute duur duut duwa dwad dwar dwbe dwbr dwdd dwdu dwer dwet dwrd dwrt dwrw dwte dwwe dwww eaba eada eadb eadd eara earb eard eare eart earw eata eate ebba ebbr ebbw ebed eber ebru ebur edad edar edaw edda edde ede- edea eder edra edru edta edur eede eedu eeea eeee eera eeta eete eetu erad erat erau erba erbb erbe erda erde ereb ered erer eret erew erra erre erta ertu erua erub erur erwt etat etbr etee eter etra etre etta ette ettu etua euaw euba eude euer eur- eura eure eurt euwe ewer ewew ewre ewte raab raad raat raba rabb rabe rabu rada radd rade radr radt radu raed raer rara rarb rare rata rate ratt ratu raua raub raud raue raut rawa rawe rawr rawu raww rbbb rbbr rder rea- read reae rear reat reau reba rebb rebe rebu reda redd rede redr redu reeb reed reet rera rerd rere rert reru reta retd rete retr rett reue reut reuu rewa rewe rrad rrat rred rrrr rtdt rtee ruad ruba rubb rube rubu ruda rudd rude rued ruer ruet rura rurd rure ruru ruta rute rutt rutu ruud ruwa ruwe taa- taar taat taba tabb tabe tabu tada tade taer tara tarb tard tare tarr tart taru tata tatb tate tatr tatt tatu taua taub taue taur taut tawa tawd tawe tawt taww tbar tbrb tbta tddb tdra tead tear teat teaw teba tebu teda tedd tede teed teer teet ter- tera tere terr teru teta tete tetr tett tetu teut tewa traa trab trad trae trat trau traw tre- trea tred tree tret treu trew trra trte trtr trub trud true trut truu trwe ttab ttbb tter tttt tuae tuar tuat tuba tubb tube tubr tubu tude tudu tuer tuet tura turb turd ture turr turt turu tuta tute tutt tutu twae twat twbt twdt twee twer uart uaru uata uatu uaua ubar ubba ubbe uber ubet ubra ubud udaa udad udar udau udea uder udet udra ueba ueda uewe urad urat urau urba urbe urda urde urdu ure- urea ured uret urra urre urte urur urut urwa utau utaw uter uttu utwe uuta uuuu uwer waaa waad waar waat waaw waba wabb wabd wabe wabr wabt wabw wada wadb wadd wade wadr wadt wadu waeb waed waee waer waet waew war- wara warb ward ware warr wart waru warw wata watb watd wate watr watt watw waub waud waur waut wawa wawb wawd wawe wawt wbaa wbab wbad wbae wbar wbat wbau wbbb wbbd wbbe wbbr wbbt wbbw wbdr wbdt wbea wbeb wbed wber wbet wbew wbrb wbrd wbrr wbrt wbru wbrw wbta wbte wbtr wbtt wbtu wbtw wbud wbut wbuw wbwb wbwt wdab wdad wdae wdba wdbd wdbr wdbt wddd wdde wddw wdea wdeb wded wder wdet wdrb wdre wdrr wdrt wdru wdtb wdte wdtr wdtw wdub wdur wdwd wdwr weaa wead wear weat weau webb webd webe webt weda wedb wedd wede wedr wedt wedu wedw weeb weed weer weet weeu wer- wera werb werd were werr wert werw weta wetb wetd wete wetr wett wetu wewe wraa wrab wrad wrae wrar wrat wrau wraw wrba wrbb wrbe wrbt wrbu wrbw wrda wrdb wrdd wrdr wrdt wrdu wrdw wreb wred wree wrer wret wrew wrra wrrb wrrd wrre wrrw wrta wrtb wrte wrtr wrtu wrtw wrua wrub wrwa wrwb wrwd wrwr wtab wtad wtae wtar wtaw wtbb wtbr wtbu wtda wtdr wtrb wtre wtrt