-al -er a-a a-b aaa aab aae aag aal aam aar aax ab- aba abb abe abg abl abm abr abx aea aeb aee aeg ael aem aer aex ag- aga agb age agg agl agm agr agx al- ala alb ale alg all alm alr alx ama amb ame amg aml amm amr amx ar- ara arb are arg arl arm arr arx ax- axa axe axl axm axr axx baa bab bae bag bal bam bar bax bba bbb bbe bbg bbl bbm bbr bbx be- bea beb bee beg bel bem ber bex bga bgb bge bgg bgl bgm bgr bgx bla blb ble blg bll blm blr blx bma bmb bme bmg bml bmm bmr bmx bra brb bre brg brl brm brr brx bxb bxl bxm bxx eaa eab eae eag eal eam ear eax eba ebb ebe ebg ebl ebm ebr ebx eea eeb eee eeg eel eem eer eex ega egb ege egg egl egm egr egx ela elb ele elg ell elm elr elx em- ema emb eme emg eml emm emr emx era erb ere erg erl erm err ex- exa exe exl exr exx gaa gab gae gag gal gam gar gba gbe gbg gbl gbm gbr gbx ge- gea geb gee geg gel gem ger gex gga ggb ggg ggm ggr gla glb gle glg gll glm glr glx gma gmb gme gmg gml gmm gmr gmx gra grb gre grg grl grm grr grx gxa gxl la- laa lab lae lag lal lam lar lax lba lbb lbe lbg lbl lbm lbr lbx lea leb lee leg lel lem ler lex lga lgb lge lgg lgl lgm lgr lla llb lle llg lll llm llr lma lmb lme lmg lml lmm lmr lra lrb lrg lrm lrr lxr lxx m-r maa mab mae mag mal mam mar max mba mbb mbe mbg mbl mbm mbr mbx mea meb mee meg mel mem mer mex mga mgb mge mgl mgm mgr mgx mla mlb mle mlg mll mlm mlr mlx mma mmb mme mmg mml mmm mmr mmx mra mrb mre mrg mrl mrm mrr mrx mxa mxl mxr ra- raa rab rae rag ral ram rar rax rba rbb rbe rbg rbl rbm rbr rbx re- rea reb ree reg rel rem rer rex rga rgb rge rgg rgr rgx rla rle rlg rll rlm rlr rma rmb rme rmg rml rmm rmr rmx rra rrb rrg rrl rrm rrr rxr xaa xag xal xam xar xbe xbl xbr xbx xee xeg xel xem xer xex xge xgl xla xlb xlg xlm xlr xma xmg xml xmm xmr xmx xrx xxl xxx