-er a-a a-b a-t aaa aab aad aae aam aar aat aau aax ab- aba abb abd abe abm abr abt abu abx ad- ada adb add ade adm adr adt adu adx aea aeb aed aee aem aer aet aeu aex ama amb amd ame amm amr amt amu amx ar- ara arb ard are arm arr art aru arx at- ata atb atd ate atm atr att atu atx au- aua aub aud aue aum aur aut aux ax- axa axe axm axr axt axx b-u baa bab bad bae bam bar bat bau bax bba bbb bbd bbe bbm bbr bbt bbu bbx bda bdb bdd bde bdm bdr bdt bdu bdx be- bea beb bed bee bem ber bet beu bex bma bmb bmd bme bmm bmr bmt bmu bmx bra brb brd bre brm brr brt bru brx bta btb btd bte btm btr btt btu btx bua bub bud bue bum bur but buu bux bxb bxd bxm bxx daa dab dad dae dam dar dat dau dax dba dbb dbd dbe dbm dbr dbt dbu dbx dda ddb ddd dde ddm ddr ddt ddu ddx de- dea deb ded dee dem der det deu dex dma dmb dmd dme dmm dmr dmt dmu dmx dra drb drd dre drm drr drt dru drx dta dtb dtd dte dtm dtr dtt dtu dtx dua dub dud due dum dur dut dux dxd dxr dxt dxx eaa eab ead eae eam ear eat eau eax eba ebb ebd ebe ebm ebr ebt ebu ebx ed- eda edb edd ede edm edr edt edu edx eea eeb eed eee eem eer eet eex em- ema emb emd eme emm emr emt emu emx era erb erd ere erm err ert eru eta etb etd ete etm etr ett etu etx eu- eua eub eud eue eur eut eux ex- exa exd exe exr ext exu exx m-r maa mab mad mae mam mar mat mau max mba mbb mbd mbe mbm mbr mbt mbu mbx mda mdb mdd mde mdm mdr mdt mdu mdx mea meb med mee mem mer met meu mex mma mmb mmd mme mmm mmr mmt mmu mmx mra mrb mrd mre mrm mrr mrt mru mrx mta mtb mtd mte mtm mtr mtt mtu mtx mua mub mud mue mum mur mut muu mux mxa mxd mxr mxu ra- raa rab rad rae ram rar rat rau rax rba rbb rbd rbe rbm rbr rbt rbu rbx rda rdb rdd rde rdm rdr rdt rdu rdx re- rea reb red ree rem rer ret reu rex rma rmb rmd rme rmm rmr rmt rmx rra rrb rrd rrm rrr rrt rru rta rtb rtd rte rtm rtr rtt rtu rtx rua rub rud rue rum rur rut ruu rux rxr t-x taa tab tad tae tam tar tat tau tax tba tbb tbd tbe tbm tbr tbt tbu tda tdb tdd tde tdm tdr tdt tdu tdx te- tea teb ted tee tem ter tet teu tex tma tmb tmd tme tmm tmr tmt tmu tmx tra trb trd tre trm trr trt tru trx tta ttb ttd tte ttm ttr ttt ttu ttx tua tub tud tue tum tur tut tuu tux txe txt txu ua- uaa uab uad uae uam uar uat uau uba ubb ube ubr ubt ubu ubx uda udb udd ude udm udr udt udu udx 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 urx uta utb utd ute utm utr utt utu utx uua uue uum uur uut uuu uxb uxr uxt uxu xaa xad xam xar xat xau xbe xbr xbx xda xdb xde xdm xdr xdt xed xee xem xer xet xeu xex xma xmd xmm xmr xmt xmu xmx xrd xrt xrx xtm xtr xtx xue xxx