-ey a-a a-b aaa aab aae aag aan aay ab- aba abb abe abg abn aby aea aeb aee aeg aen aey ag- aga agb age agg agn agy an- ana anb ane ang ann any ay- aya aye ayn baa bab bae bag ban bay bba bbb bbe bbg bbn bby be- bea beb bee beg ben bey bga bgb bge bgg bgn bna bnb bne bng bnn by- bya bye byg byn eaa eab eae eag ean eba ebb ebe ebg ebn eby eea eeb eee eeg een eey ega egb ege egg egn egy en- ena enb ene eng enn eny eya eye eyn gaa gab gae gag gan gay gba gbe gbg gbn gby ge- gea geb gee geg gen gey gga ggb ggg ggn gna gnb gne gnn gy- gya gyb gye gyn naa nab nae nag nan nay nba nbb nbe nbg nbn ne- nea neb nee neg nen ney nga ngb nge ngg ngn nna nnb nne nng nnn nya nye nyg nyn nyy yaa yab yae yag yan yay ybe ybg yby yea yeb yee yeg yen yey yga yna yne yng ynn yny yyb yye yyg yyy