-ey a-a a-b a-q aaa aab aae aan aaq aay ab- aba abb abe abn abq aby aea aeb aee aen aeq aey an- ana anb ane ann anq any aqa aqn ay- aya aye ayn baa bab bae ban baq bay bba bbb bbe bbn bbq bby be- bea beb bee ben beq bey bna bnb bne bnn bqe by- bya bye byn byq eaa eab eae ean eba ebb ebe ebn ebq eby eea eeb eee een eey en- ena enb ene enn eny eqa eqe eqn eqq eya eye eyn naa nab nae nan nay nba nbb nbe nbn ne- nea neb nee nen ney nna nnb nne nnn nya nye nyn nyy qaa qan qba qbe qbq qee qen qnb qne qqq yaa yab yae yan yay ybe yby yea yeb yee yen yey yna yne ynn yny yqb yyb yye yyy