-er a-a a-b a-i a-t aaa aab aae aai aar aat aau ab- aba abb abe abi abr abt abu aea aeb aee aei aer aet aeu ai- aia aib aie aii air ait aiu ar- ara arb are ari arr art aru at- ata atb ate ati atr att atu au- aua aub aue aui aur aut b-u baa bab bae bai bar bat bau bba bbb bbe bbi bbr bbt bbu be- bea beb bee bei ber bet beu bi- bia bib bie bii bir bit biu bra brb bre bri brr brt bru bta btb bte bti btr btt btu bua bub bue bui bur but buu eaa eab eae eai ear eat eau eba ebb ebe ebi ebr ebt ebu eea eeb eee eer eet eia eib eie eii eir eit eiu era erb ere eri err ert eru eta etb ete eti etr ett etu eu- eua eub eue eui eur eut ia- iaa iab iae iai iar iat iau iba ibb ibe ibi ibr ibt ibu ie- iea iee iei ier iet iia iib iie iii iir iit iiu ir- ira irb ire iri irr irt iru ita itb ite iti itt itu iu- iua iub iue iui iur iut ra- raa rab rae rai rar rat rau rba rbb rbe rbi rbr rbt rbu re- rea reb ree rei rer ret reu ria rib rie rii rir rit rra rrb rri rrr rrt rru rta rtb rte rti rtr rtt rtu rua rub rue rui rur rut ruu taa tab tae tai tar tat tau tba tbb tbe tbi tbr tbt tbu te- tea teb tee tei ter tet teu tia tib tie tii tir tit tiu tra trb tre tri trr trt tru tta ttb tte tti ttr ttt ttu tua tub tue tui tur tut tuu ua- uaa uab uae uai uar uat uau uba ubb ube ubi ubr ubt ubu uea ueb uee uei uer uet uia uib uie uii uir uit uiu ur- ura urb ure uri urr urt uru uta utb ute uti utr utt utu uua uue uur uut uuu

a-be a-ii aaaa aaab aaae aaai aaar aaba aabb aabi aabt aaea aaib aaii aara aare aari aart aaru aata aatt abaa abab abae abai abar abat abau abb- abba abbb abbe abbi abbr abbt abee aber abet abia abib abie abir abit abiu abra abri abta abtu abua abue abut aebi aeer aeit aer- aera aeri aeta aetr aett aiai aiba aiea aiee aiet aiia aiib aiir aira aire airi airt aita aite aiti aitr aitt aitu aiui arab arae arai arar arat arau arba arbe arbi area aree arei aret areu aria arib arie 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 atei ater atia atie atit atiu atra atre atri atru atta atte atti attr attu atua atub atur auaa aube auer aur- aura aure auri aut- aute ba-i baaa baar baat baba babb babe babi babr babu baer baia baib baie bair bait bar- bara barb bare bari barr bart baru bata bate bati batt batu bau- baur bbau bbbb bbeb bbet bear beat beau beba bebb bebe bebi beeb beer beet beia beir beit bera bere beri berr bert beru beta bete beti bett betu beur biar biat biba bibb bibe bibi bieb bier biet bieu bira birb bire biri birr birt biru bita bite bitt bitu brab brae brai brat brau brea breb bree brei brer bret bria brie brit brrr brue brut btaa btie btrt bttb buar buat buba bubb bube bubi bubu buea buer bueu buie buir buit buiu bur- bura burb bure buri burr burt buru but- buta bute buti butt eaba eaiu eara earb eare eart eata eate eati ebba ebbr eber ebit ebru ebur eeea eeee eera eeta eete eetu eiei eier eira eire eita eitb eiti eitr erat erau erba erbb erbe ereb erei erer eret eria erie erit eriu erra erre erta ertu erua erub erur etai etat etbr etee eter etra etre etta ette etti ettu etua etui euba eubi euer eur- eura eure eurt i-be iaaa iaai iaat iaba iaea iaia iara iare iart iaru iata iate iati ibar ibat ibea ibet ibia ibie ibra ibri ibtb ieat ieet ieie iera iere ieri ieta iett iiie iiii iiit iira iita iitr iitt irae irai irar irbe iree irer iri- iria irie irra irre irri irta irte irti itaa itai itar itat itbe itea iter itet itia itie itra itri itta itur iuiu iura raab raat raba rabb rabe rabi rabu raer raia raie raii rair rait raiu rara rarb rare rari rata rate rati ratt ratu raua raub raue raut rbbb rbbr rea- reae rear reat reau reba rebb rebe rebu reeb reet reia reii reir reit reiu rera rere reri rert reru reta rete reti retr rett reue reut reuu riaa riab riai riat riau rib- riba ribe ribu rier riet rieu riia rire riri rita rite riti ritt ritu riue rrat rrrr rtai rtee rtei ruba rubb rube rubi rubu ruer ruet ruit rura rure ruri ruru ruta rute ruti rutt rutu taa- taar taat taba tabb tabe tabi tabu taer taia tair tait tara tarb tare tari tarr tart taru tata tatb tate tati tatr tatt tatu taua taub taue taur taut tbar tbit tbrb tbta tear teat teba tebu teer teet teia teie teir teiu ter- tera tere teri terr teru teta tete teti tetr tett tetu teut tiaa tiab tiar tiba tibi tibu tie- tiea tiee tiei tier tiet tiit tiiu tira tirb tire tiri tirr tiru tita tite titi titt titu traa trab trae trai trat trau tre- trea tree trei tret treu tri- tria trib trie trit trra trte trtr trub true trut truu ttab ttbb tter tttt tuae tuar tuat tuba tubb tube tubr tubu tuei tuer tuet tuit tuiu tura turb ture turi turr