-er -ey eee eek een eer eet eey eke ekr ekt eky en- ene enk enn enr ent eny ere erk ern err ert ery ete etk etn etr ett ety eye eyn eyr eyt k-t ke- kee kek ken ker ket key kke kkk kkn kkr kkt kky kn- kne knk knn knr knt krk krn krr krt kry kte ktk ktn ktr ktt kye kyn kyr kyt ne- nee nek nen ner net ney nke nkk nkn nkr nkt nky nne nnk nnn nnt nre nrk nrn nrr nrt nry nte ntk ntn ntr ntt nye nyk nyn nyt nyy re- ree rek ren rer ret rey rke rkk rkt rky rnn rnr rnt rny rrk rrn rrr rrt rte rtk rtn rtr rtt rty ry- rye ryk ryn ryr ryy te- tee tek ten ter tet tey tke tkk tkr tkt tky tne tnk tnn tnr tnt tre trk trn trr trt try tte ttk ttn ttr ttt tty tye tyn tyr tyt yee yek yen yer yet yey ykk ykn yne ynk ynn yny yre yrn yrt yte ytk ytn ytr ytt yye yyt yyy