a-be a-fu a-ii aaaa aaab aaae aaaf aaai aaar aaba aabb aabi aabt aaea aafa aafb aaff aafi aaib aaii aara aare aari aart aaru aata aatf aatt abaa abab abae abaf abai abar abat abau abb- abba abbb abbe abbi abbr abbt abee aber abet abff abia abib abie abir abit abiu abra abri abta abtu abua abue abuf abut aeaf aebi aeer aeit aer- aera aeri aeta aetf aetr aett afaa afar afat afee afer afet affa affi afft afia afib afif afir afit afr- afra afre afri afru afta afte afua afue aiai aiba aiea aiee aiet aiff aiia aiib aiir aira aire airi airt aita aite aitf aiti aitr aitt aitu aiui arab arae araf arai arar arat arau arba arbe arbi area aree aref arei aret areu arfa arfb arff arft arfu aria arib arie arif arii arit arr- arra arre arri arrr arrt arru arta arte arti artr arua arub arue arui arut at-t ataa atab atae atai atar atat atea atee atef atei ater atfb atfe atia atie atif atit atiu atra atre atri atru atta atte atti attr attu atua atub atur auaa aube auer aufe aufi aur- aura aure auri aut- aute ba-i baaa baaf baar baat baba babb babe babi babr babu baer baff baft baia baib baie bair bait bar- bara barb bare barf bari barr bart baru bata bate batf bati batt batu bau- bauf baur bbau bbbb bbeb bbet beaf bear beat beau beba bebb bebe bebi beeb beef beer beet befa befe beff beft beia beir beit bera bere beri berr bert beru beta bete beti bett betu beur bfta bftt biaf biar biat biba bibb bibe bibi bieb bief bier biet bieu bifa biff bifi bira birb bire biri birr birt biru bita bite bitt bitu brab brae braf brai brat brau brea breb bree bref brei brer bret brfu bria brie brit brrr brue brut btaa btaf btie btrt bttb buar buat buba bubb bube bubi bubu buea buer bueu bufe buff bufr buie buif buir buit buiu bur- bura burb bure buri burr burt buru but- buta bute buti butt eaaf eaba eafb eaif eaiu eara earb eare eart eata eate eati ebba ebbr eber ebit ebru ebur eeea eeee eefa eefe eera eeta eete eetu efab efbr efet effa effi efit eft- efta eftu efua eiei eier eira eire eita eitb eiti eitr eraf erat erau erba erbb erbe ereb erei erer eret erft eria erie erit eriu erra erre erta ertu erua erub erur etai etat etbr etee eter etfa etfb etfe etra etre etta ette etti ettu etua etui euba eubi euer eufi eur- eura eure eurt faaa faba fabe fabi fabu faeb fafa fafe faff fafi faie fair fait fara farb fare farr fart faru fata fate fatf fati fatt faue faur faut fbar feaf fear feat feba feeb feer feet fefe feff fefi feia feie feir feit fera ferb fere ferr fert feru feta fete feti fetr fett fetu ffar ffee ffff ffii ffrr fftf fiaa fiaf fiar fiat fiba fibe fief fier fifa fife fiff fifi fift fiii fira fire fita fite fiti fitt fiua frab frae frat frau frea free frei fret fria frib frie frit frta frub frue ftea fter ftii ftub fuar fuat fubb fubu fuet fuff fufu fuir fuit fur- fura fure furi furr furt futa fute futi futu i-be iaaa iaai iaat iaba iaea iafe iaff iaia iara iare iart iaru iata iate iati ibar ibat ibea ibet ibfi ibia ibie ibra ibri ibtb ieat ieet ieie iera iere ieri ieta ietf iett ifaa ifae ifar ifat ifbb ifer ifit ifra ifrb ifrf ifri ifta iifa iiie iiii iiit iira iita iitr iitt irae iraf irai irar irbe iree irer irfe irfu iri- iria irie irra irre irri irta irte irtf irti itaa itaf itai itar itat itbe itea iter itet itfa itia itie itif itra itrf itri itta ittf itur iuef iuiu iura raab raaf raat raba rabb rabe rabi rabu raef raer rafa rafe raff rafi raft raia raie raif raii rair rait raiu rara rarb rare rarf rari rata rate ratf rati ratt ratu raua raub raue rauf raut rbaf rbbb rbbr rea- reae reaf rear reat reau reba rebb rebe rebu reeb reef reet refe reff refi refr reft refu reia reif reii reir reit reiu rera rere reri rert reru reta rete reti retr rett reue reuf reut reuu rfae rfef riaa riab riai riat riau rib- riba ribe ribu rief rier riet rieu rifa rife riff rift rifu riia riif rire riri rita rite riti ritt ritu riue rrat rrif rrrr rtai rtbf rtee rtei rtfb ruba rubb rube rubi rubu ruer ruet rufa rufe ruff ruft ruif ruit rura rure ruri ruru ruta rute ruti rutt rutu taa- taaf taar taat taba tabb tabe tabi tabu taer tafa tafe taff tafi taft taia tair tait tara tarb tare tarf tari tarr tart taru tata tatb tate tati tatr tatt tatu taua taub taue taur taut tbaf tbar tbit tbrb tbta tear teat teba tebu teef teer teet teff tefi teft teia teie teir teiu ter- tera tere terf teri terr teru teta tete teti tetr tett tetu teut tfae tfeb tiaa tiab tiaf tiar tiba tibi tibu tie- tiea tiee tief tiei tier tiet tifa tiff tift tiit tiiu tira tirb tire tiri tirr tiru tita tite titi titt titu traa trab trae traf trai trat trau tre- trea tree tref trei tret treu trfr tri- tria trib trie trif trit trra trte trtr trub true trut truu ttab ttbb tter ttfa ttff tttt tuae tuar tuat tuba tubb tube tubr tubu tuei tuer tuet tufa tufe tuff tufi tuft tufu tuit tuiu tura turb ture turf turi turr turt turu tuta tute tuti tutt tutu u-ie uafa uair uart uaru uata uatu uaua ubar ubba ubbe ubbi uber ubet ubii ubir ubit ubra ubtf ueba uefa ueir ufer uffa uffe ufra uira uirr urai