-er -ey eee eek een eep eer eey eke ekp ekr eky en- ene enk enn enp enr eny ep- epe epn epp epr ere erk ern erp err ery eye eyn eyp eyr ke- kee kek ken kep ker key kke kkk kkn kkp kkr kky kn- kne knk knn knp knr kpe kpk kpn kpp kpr krk krn krp krr kry kye kyn kyp kyr ne- nee nek nen nep ner ney nke nkk nkn nkp nkr nky nne nnk nnn nnp npe npn npp npr nre nrk nrn nrp nrr nry nye nyk nyn nyp nyy p-p pee pek pen pep per pey pke pkn pkp pkr pky pn- pne pnk pnn pnp pnr pny ppe ppk ppn ppp ppr pre prk prn prp prr pry py- pye pyk pyn pyr re- ree rek ren rep rer rey rke rkk rkp rky rnn rnp rnr rny rpe rpk rpn rpp rpr rrk rrn rrp rrr ry- rye ryk ryn ryr ryy yee yek yen yep yer yey ykk ykn yne ynk ynn ynp yny yre yrn yrp yye yyy