-ey a-a a-b aaa aab aae aam aan aax aay ab- aba abb abe abm abn abx aby aea aeb aee aem aen aex aey ama amb ame amm amn amx amy an- ana anb ane anm ann anx any ax- axa axe axm axn axx ay- aya aye ayn ayx baa bab bae bam ban bax bay bba bbb bbe bbm bbn bbx bby be- bea beb bee bem ben bex bey bma bmb bme bmm bmn bmx bna bnb bne bnn bnx bxb bxm bxn bxx by- bya bye bym byn eaa eab eae eam ean eax eba ebb ebe ebm ebn ebx eby eea eeb eee eem een eex eey em- ema emb eme emm emn emx en- ena enb ene enm enn eny ex- exa exe exx exy eya eye eym eyn maa mab mae mam man max may mba mbb mbe mbm mbx mea meb mee mem men mex mey mma mmb mme mmm mmn mmx mna mnb mne mnm mnn mxa mxn my- mya myb mye mym myn myx naa nab nae nam nan nax nay nba nbb nbe nbm nbn nbx ne- nea neb nee nem nen nex ney nma nmb nme nmm nmn nna nnb nne nnm nnn nya nye nym nyn nyx nyy xaa xam xan xbe xbx xee xem xen xex xma xmm xmx xna xxx xxy xyy yaa yab yae yam yan yax yay ybe ybm yby yea yeb yee yem yen yex yey yma yme ymm yna yne ynn yny yxa yxe yxy yyb yye yyy