-al -er a-a a-b aaa aab aae aag aal aar aas ab- aba abb abe abg abl abr abs aea aeb aee aeg ael aer aes ag- aga agb age agg agl agr ags al- ala alb ale alg all alr als ar- ara arb are arg arl arr ars as- asa asb ase asg asl asr ass baa bab bae bag bal bar bas bba bbb bbe bbg bbl bbr bbs be- bea beb bee beg bel ber bes bga bgb bge bgg bgl bgr bgs bla blb ble blg bll blr bls bra brb bre brg brl brr brs bsa bsb bse bsg bsl bsr bss eaa eab eae eag eal ear eas eba ebb ebe ebg ebl ebr ebs eea eeb eee eeg eel eer ees ega egb ege egg egl egr egs ela elb ele elg ell elr els era erb ere erg erl err ers es- esa esb ese esg esl esr ess gaa gab gae gag gal gar gas gba gbe gbg gbl gbr gbs ge- gea geb gee geg gel ger ges gga ggb ggg ggr ggs gla glb gle glg gll glr gls gra grb gre grg grl grr grs gsa gsb gse gsg gsl gsr gss la- laa lab lae lag lal lar las lba lbb lbe lbg lbl lbr lbs lea leb lee leg lel ler les lga lgb lge lgg lgl lgr lgs lla llb lle llg lll llr lls lra lrb lrg lrr lrs lsa lsb lse lsg lsl lsr lss ra- raa rab rae rag ral rar ras rba rbb rbe rbg rbl rbr rbs re- rea reb ree reg rel rer res rga rgb rge rgg rgr rgs rla rle rlg rll rlr rls rra rrb rrg rrl rrr rrs rsa rsb rse rsg rsl rsr rss saa sab sae sag sal sar sas sba sbb sbe sbg sbl sbr sbs se- sea seb see seg sel ser ses sga sgb sge sgg sgl sgr sgs sla slb sle slg sll slr sls sr- sra srb sre srg srl srr srs ss- ssa ssb sse ssg ssl ssr sss