-ey a-a a-b a-t aaa aab aae aak aan aat aay ab- aba abb abe abk abn abt aby aea aeb aee aek aen aet aey aka akb ake akk akn an- ana anb ane ank ann ant any at- ata atb ate atn att ay- aya aye ayk ayn ayt baa bab bae bak ban bat bay bba bbb bbe bbk bbn bbt bby be- bea beb bee bek ben bet bey bka bkb bke bkk bkn bkt bna bnb bne bnk bnn bnt bta btb bte btk btn btt bty by- bya bye byk byn byt eaa eab eae eak ean eat eba ebb ebe ebk ebn ebt eby eea eeb eee eek een eet eey eka ekb eke ekt eky en- ena enb ene enk enn ent eny eta etb ete etk etn ett ety eya eye eyn eyt k-t ka- kaa kab kae kak kan kat kay kba kbb kbe kbk kbn ke- kea keb kee kek ken ket key kkb kke kkk kkn kkt kky kn- kna kne knk knn knt kta ktb kte ktk ktn ktt kya kye kyn kyt naa nab nae nak nan nat nay nba nbb nbe nbk nbn nbt ne- nea neb nee nek nen net ney nka nke nkk nkn nkt nky nna nnb nne nnk nnn nnt nta ntb nte ntk ntn ntt nya nye nyk nyn nyt nyy taa tab tae tak tan tat tay tba tbb tbe tbk tbn tbt te- tea teb tee tek ten tet tey tka tkb tke tkk tkt tky tna tnb tne tnk tnn tnt tta ttb tte ttk ttn ttt tty tya tye tyn tyt yaa yab yae yak yan yat yay ybe yby yea yeb yee yek yen yet yey yka ykk ykn yna yne ynk ynn yny yta yte ytk ytn ytt yyb yye yyt yyy