-ey a-a a-b aaa aab aae aam aas aay ab- aba abb abe abm abs aby aea aeb aee aem aes aey ama amb ame amm ams amy as- asa asb ase asm ass asy ay- aya aye ays baa bab bae bam bas bay bba bbb bbe bbm bbs bby be- bea beb bee bem bes bey bma bmb bme bmm bms bsa bsb bse bsm bss bsy by- bya bye bym bys eaa eab eae eam eas eba ebb ebe ebm ebs eby eea eeb eee eem ees eey em- ema emb eme emm ems es- esa esb ese esm ess esy eya eye eym eys maa mab mae mam mas may mba mbb mbe mbm mbs mea meb mee mem mes mey mma mmb mme mmm mms msa msb mse msm mss msy my- mya myb mye mym mys saa sab sae sam sas say sba sbb sbe sbm sbs sby se- sea seb see sem ses sey sma smb sme smm sms smy ss- ssa ssb sse ssm sss sy- sya syb sye sym sys yaa yab yae yam yas yay ybe ybm ybs yby yea yeb yee yem yes yey yma yme ymm yms ysa ysb yse ysm yss ysy yyb yye yys yyy