-er a-a a-b a-i a-t aaa aab aae aaf aai aar aat aau ab- aba abb abe abf abi abr abt abu aea aeb aee aef aei aer aet aeu af- afa afb afe aff afi afr aft afu ai- aia aib aie aif aii air ait aiu ar- ara arb are arf ari arr art aru at- ata atb ate atf ati atr att atu au- aua aub aue auf aui aur aut b-u baa bab bae baf bai bar bat bau bba bbb bbe bbf bbi bbr bbt bbu be- bea beb bee bef bei ber bet beu bfa bfb bfe bff bfi bfr bft bfu bi- bia bib bie bif bii bir bit biu bra brb bre brf bri brr brt bru bta btb bte btf bti btr btt btu bua bub bue buf bui bur but buu eaa eab eae eaf eai ear eat eau eba ebb ebe ebf ebi ebr ebt ebu eea eeb eee eef eer eet ef- efa efb efe eff efi efr eft eia eib eie eif eii eir eit eiu era erb ere erf eri err ert eru eta etb ete etf eti etr ett etu eu- eua eub eue euf eui eur eut faa fab fae faf fai far fat fau fba fbb fbe fbf fbi fbr fbt fbu fea feb fee fef fei fer fet feu ffa ffe fff ffi ffr fft ffu fia fib fie fif fii fir fit fiu fra frb fre frf fri frr frt fru fta ftb fte ftf fti ftr ftt ftu fua fub fue fuf fui fur fut fuu i-f ia- iaa iab iae iaf iai iar iat iau iba ibb ibe ibf ibi ibr ibt ibu ie- iea iee ief iei ier iet ifa ifb ife iff ifi ifr ift ifu iia iib iie iif iii iir iit iiu ir- ira irb ire irf iri irr irt iru ita itb ite itf iti itt itu iu- iua iub iue iui iur iut ra- raa rab rae raf rai rar rat rau rba rbb rbe rbf rbi rbr rbt rbu re- rea reb ree ref rei rer ret reu rfa rfb rfe rff rfi rfr rft rfu ria rib rie rif rii rir rit rra rrb rrf rri rrr rrt rru rta rtb rte rtf rti rtr rtt rtu rua rub rue ruf rui rur rut ruu taa tab tae taf tai tar tat tau tba tbb tbe tbf tbi tbr tbt tbu te- tea teb tee tef tei ter tet teu tfa tfb tfe tff tfi tfr tft tfu tia tib tie tif tii tir tit tiu tra trb tre trf tri trr trt tru tta ttb tte ttf tti ttr ttt ttu tua tub tue tuf tui tur tut tuu ua- uaa uab uae uaf uai uar uat uau uba ubb ube ubf ubi ubr ubt ubu uea ueb uee uef uei uer uet ufa ufe uff ufi ufr uft ufu uia uib uie uif uii uir uit uiu ur- ura urb ure urf uri urr urt uru uta utb ute utf uti utr utt utu uua uue uur uut uuu

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