-ey a-a a-b a-i a-t aaa aab aae aag aai aas aat aay ab- aba abb abe abg abi abs abt aby aea aeb aee aeg aei aes aet aey ag- aga agb age agg agi ags agt agy ai- aia aib aie aig aii ais ait aiy as- asa asb ase asg asi ass ast asy at- ata atb ate atg ati ats att ay- aya aye ayi ays ayt baa bab bae bag bai bas bat bay bba bbb bbe bbg bbi bbs bbt bby be- bea beb bee beg bei bes bet bey bga bgb bge bgg bgi bgs bgt bi- bia bib bie big bii bis bit biy bsa bsb bse bsg bsi bss bst bsy bta btb bte btg bti bts btt bty by- bya bye byg byi bys byt eaa eab eae eag eai eas eat eba ebb ebe ebg ebi ebs ebt eby eea eeb eee eeg ees eet eey ega egb ege egg egi egs egt egy eia eib eie eig eii eis eit es- esa esb ese esg esi ess est esy eta etb ete etg eti ets ett ety eya eye eys eyt gaa gab gae gag gai gas gat gay gba gbe gbg gbi gbs gbt gby ge- gea geb gee geg gei ges get gey gga ggb ggg ggi ggs ggt gia gib gie gig gii gis git giy gsa gsb gse gsg gsi gss gst gta gtb gte gtg gti gts gtt gty gy- gya gyb gye gys ia- iaa iab iae iag iai ias iat iba ibb ibe ibg ibi ibs ibt iby ie- iea iee ieg iei ies iet iey iga igb ige igg igi igs igt igy iia iib iie iii iis iit is- isa isb ise isg isi iss ist isy ita itb ite itg iti its itt ity iya iye iys iyt iyy saa sab sae sag sai sas sat say sba sbb sbe sbg sbi sbs sbt sby se- sea seb see seg sei ses set sey sga sgb sge sgg sgi sgs sgt sia sib sie sig sii sis sit ss- ssa ssb sse ssg ssi sss sst sta stb ste stg sti sts stt sty sy- sya syb sye syg syi sys syt taa tab tae tag tai tas tat tay tba tbb tbe tbg tbi tbs tbt te- tea teb tee teg tei tes tet tey tga tgb tge tgg tgi tgs tgt tgy tia tib tie tig tii tis tit tiy tsa tsb tse tsg tsi tss tst tsy tta ttb tte ttg tti tts ttt tty tya tye tyg tys tyt yaa yab yae yag yai yas yat yay ybe ybg ybi ybs yby yea yeb yee yeg yei yes yet yey yga yie yig yii yis yit ysa ysb yse ysg ysi yss yst ysy yta yte yts ytt yyb yye yyg yys yyt yyy