-al -er a-a a-b aaa aab aad aae aag aal aar aas ab- aba abb abd abe abg abl abr abs ad- ada adb add ade adg adl adr ads aea aeb aed aee aeg ael aer aes ag- aga agb agd age agg agl agr ags al- ala alb ald ale alg all alr als ar- ara arb ard are arg arl arr ars as- asa asb asd ase asg asl asr ass baa bab bad bae bag bal bar bas bba bbb bbd bbe bbg bbl bbr bbs bda bdb bdd bde bdg bdl bdr bds be- bea beb bed bee beg bel ber bes bga bgb bgd bge bgg bgl bgr bgs bla blb bld ble blg bll blr bls bra brb brd bre brg brl brr brs bsa bsb bsd bse bsg bsl bsr bss daa dab dad dae dag dal dar das dba dbb dbd dbe dbg dbl dbr dbs dda ddb ddd dde ddg ddl ddr dds de- dea deb ded dee deg del der des dga dgd dge dgg dgl dgr dgs dl- dla dlb dld dle dlg dll dlr dls dra drb drd dre drg drl drr drs dsa dsb dsd dse dsg dsl dsr dss eaa eab ead eae eag eal ear eas eba ebb ebd ebe ebg ebl ebr ebs ed- eda edb edd ede edg edl edr eds eea eeb eed eee eeg eel eer ees ega egb egd ege egg egl egr egs ela elb eld ele elg ell elr els era erb erd ere erg erl err ers es- esa esb esd ese esg esl esr ess g-d gaa gab gad gae gag gal gar gas gba gbd gbe gbg gbl gbr gbs gda gdb gdd gde gdl gdr gds ge- gea geb ged gee geg gel ger ges gga ggb ggd ggg ggr ggs gla glb gld gle glg gll glr gls gra grb grd gre grg grl grr grs gsa gsb gsd gse gsg gsl gsr gss la- laa lab lad lae lag lal lar las lba lbb lbd lbe lbg lbl lbr lbs lda ldb ldd lde ldg ldl ldr lds lea leb led lee leg lel ler les lga lgb lgd lge lgg lgl lgr lgs lla llb lld lle llg lll llr lls lra lrb lrd lrg lrr lrs lsa lsb lsd lse lsg lsl lsr lss ra- raa rab rad rae rag ral rar ras rba rbb rbd rbe rbg rbl rbr rbs rda rdb rdd rde rdg rdl rdr rds re- rea reb red ree reg rel rer res rga rgb rgd rge rgg rgr rgs rla rld rle rlg rll rlr rls rra rrb rrd rrg rrl rrr rrs rsa rsb rsd rse rsg rsl rsr rss saa sab sad sae sag sal sar sas sba sbb sbd sbe sbg sbl sbr sbs sda sdb sdd sde sdg sdl sdr sds se- sea seb sed see seg sel ser ses sga sgb sgd sge sgg sgl sgr sgs sla slb sld sle slg sll slr sls sr- sra srb srd sre srg srl srr srs ss- ssa ssb ssd sse ssg ssl ssr sss