-er a-a a-b a-i a-t aaa aab aae aag aai aam aar aat aau aax ab- aba abb abe abg abi abm abr abt abu abx aea aeb aee aeg aei aem aer aet aeu aex ag- aga agb age agg agi agm agr agt agu agx ai- aia aib aie aig aii aim air ait aiu aix ama amb ame amg ami amm amr amt amu amx ar- ara arb are arg ari arm arr art aru arx at- ata atb ate atg ati atm atr att atu atx au- aua aub aue aug aui aum aur aut aux ax- axa axe axi axm axr axt axx b-u baa bab bae bag bai bam bar bat bau bax bba bbb bbe bbg bbi bbm bbr bbt bbu bbx be- bea beb bee beg bei bem ber bet beu bex bga bgb bge bgg bgi bgm bgr bgt bgu bgx bi- bia bib bie big bii bim bir bit biu bix bma bmb bme bmg bmi bmm bmr bmt bmu bmx bra brb bre brg bri brm brr brt bru brx bta btb bte btg bti btm btr btt btu btx bua bub bue bug bui bum bur but buu bux bxb bxi bxm bxx eaa eab eae eag eai eam ear eat eau eax eba ebb ebe ebg ebi ebm ebr ebt ebu ebx eea eeb eee eeg eem eer eet eex ega egb ege egg egi egm egr egt egu egx eia eib eie eig eii eim eir eit eiu eix em- ema emb eme emg emi emm emr emt emu emx era erb ere erg eri erm err ert eru eta etb ete etg eti etm etr ett etu etx eu- eua eub eue eug eui eur eut eux ex- exa exe exi exr ext exu exx gaa gab gae gag gai gam gar gat gau gba gbe gbg gbi gbm gbr gbt gbu gbx ge- gea geb gee geg gei gem ger get geu gex gga ggb ggg ggi ggm ggr ggt ggu gia gib gie gig gii gim gir git giu gma gmb gme gmg gmi gmm gmr gmt gmx gra grb gre grg gri grm grr grt gru grx gta gtb gte gtg gti gtm gtr gtt gtu gtx gu- gua gub gue gug gui gum gur gut guu gxa gxt ia- iaa iab iae iag iai iam iar iat iau iba ibb ibe ibg ibi ibm ibr ibt ibu ibx ie- iea iee ieg iei iem ier iet iex iga igb ige igg igi igm igr igt igu iia iib iie iii iim iir iit iiu iix im- ima imb ime img imi imm imt imu imx ir- ira irb ire irg iri irm irr irt iru irx ita itb ite itg iti itm itt itu itx iu- iua iub iue iug iui ium iur iut ixe ixi m-r maa mab mae mag mai mam mar mat mau max mba mbb mbe mbg mbi mbm mbr mbt mbu mbx mea meb mee meg mei mem mer met meu mex mga mgb mge mgi mgm mgr mgt mgu mgx mi- mia mib mie mig mii mim mir mit miu mix mma mmb mme mmg mmi mmm mmr mmt mmu mmx mra mrb mre mrg mri mrm mrr mrt mru mrx mta mtb mte mtg mti mtm mtr mtt mtu mtx mua mub mue mug mui mum mur mut muu mux mxa mxi mxr mxu ra- raa rab rae rag rai ram rar rat rau rax rba rbb rbe rbg rbi rbm rbr rbt rbu rbx re- rea reb ree reg rei rem rer ret reu rex rga rgb rge rgg rgi rgr rgt rgx ria rib rie rig rii rim rir rit rix rma rmb rme rmg rmi rmm rmr rmt rmx rra rrb rrg rri rrm rrr rrt rru rta rtb rte rtg rti rtm rtr rtt rtu rtx rua rub rue rug rui rum rur rut ruu rux rxr t-x taa tab tae tag tai tam tar tat tau tax tba tbb tbe tbg tbi tbm tbr tbt tbu te- tea teb tee teg tei tem ter tet teu tex tga tgb tge tgg tgi tgm tgr tgt tgu tia tib tie tig tii tim tir tit tiu tix tma tmb tme tmg tmi tmm tmr tmt tmu tmx tra trb tre trg tri trm trr trt tru trx tta ttb tte ttg tti ttm ttr ttt ttu ttx tua tub tue tug tui tum tur tut tuu tux txe txi txt txu ua- uaa uab uae uag uai uam uar uat uau uba ubb ube ubg ubi ubr ubt ubu ubx uea ueb uee ueg uei uem uer uet uga ugb uge ugg ugi ugm ugr ugt ugu ugx uia uib uie uig uii uim uir uit uiu um- uma umb ume umg umi umm umr umt umu ur- ura urb ure urg uri urm urr urt uru urx uta utb ute uti utm utr utt utu utx uua uue uug uum uur uut uuu uxb uxr uxt uxu xaa xag xam xar xat xau xbe xbr xbx xee xeg xem xer xet xeu xex xge xgi xia xie xii xit xiu xix xma xmg xmi xmm xmr xmt xmu xmx xrt xrx xti xtm xtr xtx xue xui xxi xxx