-ey b-u bbb bbe bbn bbt bbu bby be- beb bee ben bet beu bey bnb bne bnn bnt bnu btb bte btn btt btu bty bub bue bun but buu buy by- bye byn byt byu ebb ebe ebn ebt ebu eby eeb eee een eet eey en- enb ene enn ent enu eny etb ete etn ett etu ety eu- eub eue eun eut eye eyn eyt nbb nbe nbn nbt nbu ne- neb nee nen net neu ney nnb nne nnn nnt nnu ntb nte ntn ntt ntu nub nue nun nut nuu nuy nye nyn nyt nyu nyy tbb tbe tbn tbt tbu te- teb tee ten tet teu tey tnb tne tnn tnt ttb tte ttn ttt ttu tty tub tue tun tut tuu tuy tye tyn tyt ubb ube ubn ubt ubu uby ueb uee uen uet uey un- unb une unn unt unu uny utb ute utn utt utu uty uue uun uut uuu uyu ybe yby yeb yee yen yet yey yne ynn ynu yny yte ytn ytt ytu yue yun yut yuu yuy yyb yye yyt yyu yyy