-ey a-a a-b a-t aaa aab aae aag aat aau aay ab- aba abb abe abg abt abu aby aea aeb aee aeg aet aeu aey ag- aga agb age agg agt agu agy at- ata atb ate atg att atu au- aua aub aue aug aut ay- aya aye ayt ayu b-u baa bab bae bag bat bau bay bba bbb bbe bbg bbt bbu bby be- bea beb bee beg bet beu bey bga bgb bge bgg bgt bgu bta btb bte btg btt btu bty bua bub bue bug but buu buy by- bya bye byg byt byu eaa eab eae eag eat eau eba ebb ebe ebg ebt ebu eby eea eeb eee eeg eet eey ega egb ege egg egt egu egy eta etb ete etg ett etu ety eu- eua eub eue eug eut eya eye eyt gaa gab gae gag gat gau gay gba gbe gbg gbt gbu gby ge- gea geb gee geg get geu gey gga ggb ggg ggt ggu gta gtb gte gtg gtt gtu gty gu- gua gub gue gug gut guu guy gy- gya gyb gye taa tab tae tag tat tau tay tba tbb tbe tbg tbt tbu te- tea teb tee teg tet teu tey tga tgb tge tgg tgt tgu tgy tta ttb tte ttg ttt ttu tty tua tub tue tug tut tuu tuy tya tye tyg tyt ua- uaa uab uae uag uat uau uay uba ubb ube ubg ubt ubu uby uea ueb uee ueg uet uey uga ugb uge ugg ugt ugu uta utb ute utt utu uty uua uue uug uut uuu uyu yaa yab yae yag yat yau yay ybe ybg yby yea yeb yee yeg yet yey yga yta yte ytt ytu yua yue yug yut yuu yuy yyb yye yyg yyt yyu yyy