-ey a-a a-b aaa aab aae aan aas aay ab- aba abb abe abn abs aby aea aeb aee aen aes aey an- ana anb ane ann ans any as- asa asb ase asn ass asy ay- aya aye ayn ays baa bab bae ban bas bay bba bbb bbe bbn bbs bby be- bea beb bee ben bes bey bna bnb bne bnn bns bsa bsb bse bsn bss bsy by- bya bye byn bys eaa eab eae ean eas eba ebb ebe ebn ebs eby eea eeb eee een ees eey en- ena enb ene enn ens eny es- esa esb ese esn ess esy eya eye eyn eys naa nab nae nan nas nay nba nbb nbe nbn nbs ne- nea neb nee nen nes ney nna nnb nne nnn nns nsa nsb nse nsn nss nsy nya nye nyn nys nyy saa sab sae san sas say sba sbb sbe sbn sbs sby se- sea seb see sen ses sey sna snb sne snn sns sny ss- ssa ssb sse ssn sss sy- sya syb sye syn sys yaa yab yae yan yas yay ybe ybs yby yea yeb yee yen yes yey yna yne ynn yns yny ysa ysb yse yss ysy yyb yye yys yyy