-er -ey a-a a-b a-t aaa aab aae aag aar aas aat aay ab- aba abb abe abg abr abs abt aby aea aeb aee aeg aer aes aet aey ag- aga agb age agg agr ags agt agy ar- ara arb are arg arr ars art ary as- asa asb ase asg asr ass ast asy at- ata atb ate atg atr ats att ay- aya aye ayr ays ayt baa bab bae bag bar bas bat bay bba bbb bbe bbg bbr bbs bbt bby be- bea beb bee beg ber bes bet bey bga bgb bge bgg bgr bgs bgt bra brb bre brg brr brs brt bry bsa bsb bse bsg bsr bss bst bsy bta btb bte btg btr bts btt bty by- bya bye byg byr bys byt eaa eab eae eag ear eas eat eba ebb ebe ebg ebr ebs ebt eby eea eeb eee eeg eer ees eet eey ega egb ege egg egr egs egt egy era erb ere erg err ers ert ery es- esa esb ese esg esr ess est esy eta etb ete etg etr ets ett ety eya eye eyr eys eyt gaa gab gae gag gar gas gat gay gba gbe gbg gbr gbs gbt gby ge- gea geb gee geg ger ges get gey gga ggb ggg ggr ggs ggt gra grb gre grg grr grs grt gry gsa gsb gse gsg gsr gss gst gta gtb gte gtg gtr gts gtt gty gy- gya gyb gye gyr gys ra- raa rab rae rag rar ras rat ray rba rbb rbe rbg rbr rbs rbt re- rea reb ree reg rer res ret rey rga rgb rge rgg rgr rgs rgt rra rrb rrg rrr rrs rrt rsa rsb rse rsg rsr rss rst rta rtb rte rtg rtr rts rtt rty ry- rya rye ryg ryr rys ryy saa sab sae sag sar sas sat say sba sbb sbe sbg sbr sbs sbt sby se- sea seb see seg ser ses set sey sga sgb sge sgg sgr sgs sgt sr- sra srb sre srg srr srs srt sry ss- ssa ssb sse ssg ssr sss sst sta stb ste stg str sts stt sty sy- sya syb sye syg syr sys syt taa tab tae tag tar tas tat tay tba tbb tbe tbg tbr tbs tbt te- tea teb tee teg ter tes tet tey tga tgb tge tgg tgr tgs tgt tgy tra trb tre trg trr trs trt try tsa tsb tse tsg tsr tss tst tsy tta ttb tte ttg ttr tts ttt tty tya tye tyg tyr tys tyt yaa yab yae yag yar yas yat yay ybe ybg ybr ybs yby yea yeb yee yeg yer yes yet yey yga yra yre yrg yrs yrt ysa ysb yse ysg ysr yss yst ysy yta yte ytr yts ytt yyb yye yyg yys yyt yyy