-ey a-a a-b aaa aab aae aag aan aas aay ab- aba abb abe abg abn abs aby aea aeb aee aeg aen aes aey ag- aga agb age agg agn ags agy an- ana anb ane ang ann ans any as- asa asb ase asg asn ass asy ay- aya aye ayn ays baa bab bae bag ban bas bay bba bbb bbe bbg bbn bbs bby be- bea beb bee beg ben bes bey bga bgb bge bgg bgn bgs bna bnb bne bng bnn bns bsa bsb bse bsg bsn bss bsy by- bya bye byg byn bys eaa eab eae eag ean eas eba ebb ebe ebg ebn ebs eby eea eeb eee eeg een ees eey ega egb ege egg egn egs egy en- ena enb ene eng enn ens eny es- esa esb ese esg esn ess esy eya eye eyn eys gaa gab gae gag gan gas gay gba gbe gbg gbn gbs gby ge- gea geb gee geg gen ges gey gga ggb ggg ggn ggs gna gnb gne gnn gns gsa gsb gse gsg gsn gss gy- gya gyb gye gyn gys naa nab nae nag nan nas nay nba nbb nbe nbg nbn nbs ne- nea neb nee neg nen nes ney nga ngb nge ngg ngn ngs nna nnb nne nng nnn nns nsa nsb nse nsg nsn nss nsy nya nye nyg nyn nys nyy saa sab sae sag san sas say sba sbb sbe sbg sbn sbs sby se- sea seb see seg sen ses sey sga sgb sge sgg sgn sgs sna snb sne sng snn sns sny ss- ssa ssb sse ssg ssn sss sy- sya syb sye syg syn sys yaa yab yae yag yan yas yay ybe ybg ybs yby yea yeb yee yeg yen yes yey yga yna yne yng ynn yns yny ysa ysb yse ysg yss ysy yyb yye yyg yys yyy