-er a-a a-b a-t aaa aab aad aae aam aar aat aau ab- aba abb abd abe abm abr abt abu ad- ada adb add ade adm adr adt adu aea aeb aed aee aem aer aet aeu ama amb amd ame amm amr amt amu ar- ara arb ard are arm arr art aru at- ata atb atd ate atm atr att atu au- aua aub aud aue aum aur aut b-u baa bab bad bae bam bar bat bau bba bbb bbd bbe bbm bbr bbt bbu bda bdb bdd bde bdm bdr bdt bdu be- bea beb bed bee bem ber bet beu bma bmb bmd bme bmm bmr bmt bmu bra brb brd bre brm brr brt bru bta btb btd bte btm btr btt btu bua bub bud bue bum bur but buu daa dab dad dae dam dar dat dau dba dbb dbd dbe dbm dbr dbt dbu dda ddb ddd dde ddm ddr ddt ddu de- dea deb ded dee dem der det deu dma dmb dmd dme dmm dmr dmt dmu dra drb drd dre drm drr drt dru dta dtb dtd dte dtm dtr dtt dtu dua dub dud due dum dur dut eaa eab ead eae eam ear eat eau eba ebb ebd ebe ebm ebr ebt ebu ed- eda edb edd ede edm edr edt edu eea eeb eed eee eem eer eet em- ema emb emd eme emm emr emt emu era erb erd ere erm err ert eru eta etb etd ete etm etr ett etu eu- eua eub eud eue eur eut m-r maa mab mad mae mam mar mat mau mba mbb mbd mbe mbm mbr mbt mbu mda mdb mdd mde mdm mdr mdt mdu mea meb med mee mem mer met meu mma mmb mmd mme mmm mmr mmt mmu mra mrb mrd mre mrm mrr mrt mru mta mtb mtd mte mtm mtr mtt mtu mua mub mud mue mum mur mut muu ra- raa rab rad rae ram rar rat rau rba rbb rbd rbe rbm rbr rbt rbu rda rdb rdd rde rdm rdr rdt rdu re- rea reb red ree rem rer ret reu rma rmb rmd rme rmm rmr rmt rra rrb rrd rrm rrr rrt rru rta rtb rtd rte rtm rtr rtt rtu rua rub rud rue rum rur rut ruu taa tab tad tae tam tar tat tau tba tbb tbd tbe tbm tbr tbt tbu tda tdb tdd tde tdm tdr tdt tdu te- tea teb ted tee tem ter tet teu tma tmb tmd tme tmm tmr tmt tmu tra trb trd tre trm trr trt tru tta ttb ttd tte ttm ttr ttt ttu tua tub tud tue tum tur tut tuu ua- uaa uab uad uae uam uar uat uau uba ubb ube ubr ubt ubu uda udb udd ude udm udr udt udu uea ueb ued uee uem uer uet um- uma umb umd ume umm umr umt umu ur- ura urb urd ure urm urr urt uru uta utb utd ute utm utr utt utu uua uue uum uur uut uuu

a-be aaaa aaab aaad aaae aaam aaar aaba aabb aabd aabm aabt aada aade aadt aadu aaea aaem aama aamb aamd aame aamr aara aard aare aarm aart aaru aata aatt abaa abab abad abae abam abar abat abau abb- abba abbb abbe abbr abbt abda abdu abed abee aber abet abma abmb abmt abra abta abtu abua abud abue abum abut adaa adab adad adae adam adar adat adba adda addd adde addr addu adea adeb adee adem ader adet adma admb adme admr adra adre adta adua adub adue adur aede aedt aeer aemt aer- aera aerd aeta aetr aett amaa amad amae amam amar amat amb- amba ambe ambr ambu amda amdt amed amee amer amet ameu amm- amma amme ammu amra amta amte amua amud amum amur arab arad arae aram arar arat arau arba arbe arda arde ardm ardu area ared aree arem aret areu arma armd arme armm armt armu arr- arra arre arrr arrt arru arta arte artr arua arub arud arue arum arut at-t ataa atab atad atae atar atat atdt atea ated atee atem ater atm- atma atme atmu atra atre atrm atru atta atte attr attu atua atub atum atur auaa aube aude auer auma aur- aura aurd aure aut- aute baaa baad baam baar baat baba babb babe babm babr babu bada badb badd bade badr badu baed baer bama bamb bame bamm bamu bar- bara barb bard bare barm barr bart baru bata bate batt batu bau- baud baum baur bbad bbau bbbb bbdd bbeb bbet bd-r bdrm bead beam bear beat beau beba bebb bebe beda bede bedu beeb beed beem beer beet bema beme bemu bera berd bere berm berr bert beru beta bete bett betu beur bmaa bmdb brab brad brae bram brat brau brda brdm brdt brea breb bred bree brem brer bret brrm brrr brud brue brum brut btaa btdt btrt bttb buad buar buat buba bubb bube bubu buda budb budd bude budu buea buem buer bueu bum- buma bumb bur- bura burb burd bure burm burr burt buru but- buta bute butt daab daad daae daam daar daau daba dabb dabt dabu dada dade dadu daeb daem daer daeu dama damb dame damm damu dara darb dard dare darr dart daru data date datr datt datu daub daud daue daum daur daut dbar dbtt dddd ddre ddub dead deae dear deau deba debe debt debu deda dedd dede dedu deeb deed deem deer deet dem- dema demb demd deme demu der- dera derb dere derm derr deta dete detr deua deue deum deur deut dmaa dmab dmae dmba dmdt dmea dmrb draa drab drad dram drar drat drau drba drda drea dred dree drem dret drra drua drub drue drum drut druu dtaa dted duaa duab duad duar duat dub- duba dubb dube dubu duda dudd dude dudu duer