-er a-a a-b a-i a-t aaa aab aae aag aai aar aat aau ab- aba abb abe abg abi abr abt abu aea aeb aee aeg aei aer aet aeu ag- aga agb age agg agi agr agt agu ai- aia aib aie aig aii air ait aiu ar- ara arb are arg ari arr art aru at- ata atb ate atg ati atr att atu au- aua aub aue aug aui aur aut b-u baa bab bae bag bai bar bat bau bba bbb bbe bbg bbi bbr bbt bbu be- bea beb bee beg bei ber bet beu bga bgb bge bgg bgi bgr bgt bgu bi- bia bib bie big bii bir bit biu bra brb bre brg bri brr brt bru bta btb bte btg bti btr btt btu bua bub bue bug bui bur but buu eaa eab eae eag eai ear eat eau eba ebb ebe ebg ebi ebr ebt ebu eea eeb eee eeg eer eet ega egb ege egg egi egr egt egu eia eib eie eig eii eir eit eiu era erb ere erg eri err ert eru eta etb ete etg eti etr ett etu eu- eua eub eue eug eui eur eut gaa gab gae gag gai gar gat gau gba gbe gbg gbi gbr gbt gbu ge- gea geb gee geg gei ger get geu gga ggb ggg ggi ggr ggt ggu gia gib gie gig gii gir git giu gra grb gre grg gri grr grt gru gta gtb gte gtg gti gtr gtt gtu gu- gua gub gue gug gui gur gut guu ia- iaa iab iae iag iai iar iat iau iba ibb ibe ibg ibi ibr ibt ibu ie- iea iee ieg iei ier iet iga igb ige igg igi igr igt igu iia iib iie iii iir iit iiu ir- ira irb ire irg iri irr irt iru ita itb ite itg iti itt itu iu- iua iub iue iug iui iur iut ra- raa rab rae rag rai rar rat rau rba rbb rbe rbg rbi rbr rbt rbu re- rea reb ree reg rei rer ret reu rga rgb rge rgg rgi rgr rgt ria rib rie rig rii rir rit rra rrb rrg rri rrr rrt rru rta rtb rte rtg rti rtr rtt rtu rua rub rue rug rui rur rut ruu taa tab tae tag tai tar tat tau tba tbb tbe tbg tbi tbr tbt tbu te- tea teb tee teg tei ter tet teu tga tgb tge tgg tgi tgr tgt tgu tia tib tie tig tii tir tit tiu tra trb tre trg tri trr trt tru tta ttb tte ttg tti ttr ttt ttu tua tub tue tug tui tur tut tuu ua- uaa uab uae uag uai uar uat uau uba ubb ube ubg ubi ubr ubt ubu uea ueb uee ueg uei uer uet uga ugb uge ugg ugi ugr ugt ugu uia uib uie uig uii uir uit uiu ur- ura urb ure urg uri urr urt uru uta utb ute uti utr utt utu uua uue uug uur uut uuu

a-be a-ii aaaa aaab aaae aaai aaar aaba aabb aabi aabt aaea aage aaib aaii aara aare aari aart aaru aata aatt abaa abab abae abag abai abar abat abau abb- abba abbb abbe abbi abbr abbt abee aber abet abia abib abie abig abir abit abiu abra abri abta abtu abua abue abug abut aebi aeer aega aeit aer- aera aeri aeta aetr aett agag agai agar agat agau agba agea agee agei ager aget agga agge aggi aggu agia agib agie agig agii agir agit agra agre agri agta agte agtr agua ague agui agur agut aiai aiba aiea aiee aiet aiga aiia aiib aiir aira aire airi airt aita aite aiti aitr aitt aitu aiui arab arae arag arai arar arat arau arba arbe arbi area aree areg arei aret areu arga argb arge argi aria arib arie arig arii arit arr- arra arre arrg arri arrr arrt arru arta arte arti artr arua arub arue arug 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 atug atur auaa aube auer auga auge augi aur- aura aure auri aut- aute auug ba-i baaa baar baat baba babb babe babi babr babu baer baga bage bagg bagi bagt baia baib baie baig bair bait bar- bara barb bare barg bari barr bart baru bata bate bati batt batu bau- baug baur bbau bbbb bbeb bbet bbga bbrg beag bear beat beau beba bebb bebe bebi beeb beeg beer beet bega begg begi begu beia beir beit bera bere berg beri berr bert beru beta bete beti bett betu beur bgia biar biat biba bibb bibe bibi bieb bier biet bieu biga bigb bige bigg bigt bigu bira birb bire birg biri birr birt biru bita bite bitt bitu brab brae brag brai brat brau brea breb bree breg brei brer bret bria brie brig brit brrr brue brug brut btaa btie btrt bttb buar buat buba bubb bube bubi bubu buea buer bueu buga buge bugg bugi buie buir buit buiu bur- bura burb bure burg buri burr burt buru but- buta bute buti butt eaba eaga eage eaiu eara earb eare eart eata eate eati ebba ebbr eber ebit ebru ebur eeea eeee eega eera eerg eeta eete eetu egaa egae egar egat egba egbe egbu egea egee eger eggb egge eggi egir egra egre egri egta egte eiei eier eige eigg eira eire eita eitb eiti eitr erat erau erba erbb erbe ereb erei erer eret erg- erga ergg ergi eria erie erit eriu erra erre erta ertu erua erub erur etag etai etat etbr etee eter etra etre etta ette etti ettu etua etui euba eubi euer euge eur- eura eure eurt gaar gaba gabb gabe gabi gabr gabt gabu gaea gaer gaga gage gagg gagi