-er -ey eee eek een eep eer eey eie eii eik ein eip eir eke eki ekp ekr eky en- ene eni enk enn enp enr eny ep- epe epi epn epp epr ere eri erk ern erp err ery eye eyn eyp eyr ie- iee iei iek ien iep ier iey iie iii iin iip iir ike iki ikk ikr in- ine ini ink inn inp inr iny ipe ipi ipn ipp ipr ipy ir- ire iri irk irn irp irr iry iye iyr iyy ke- kee kei kek ken kep ker key kie kii kik kin kip kir kke kki kkk kkn kkp kkr kky kn- kne kni knk knn knp knr kpe kpi kpk kpn kpp kpr kri krk krn krp krr kry kye kyn kyp kyr n-i ne- nee nei nek nen nep ner ney nie nii nik nin nip nir nke nki nkk nkn nkp nkr nky nne nni nnk nnn nnp npe npi npn npp npr nre nri nrk nrn nrp nrr nry nye nyk nyn nyp nyy p-p pee pei pek pen pep per pey pie pii pik pin pip pir pke pki pkn pkp pkr pky pn- pne pni pnk pnn pnp pnr pny ppe ppi ppk ppn ppp ppr pre pri prk prn prp prr pry py- pye pyk pyn pyr re- ree rei rek ren rep rer rey rie rii rik rin rip rir riy rke rkk rkp rky rni rnn rnp rnr rny rpe rpi rpk rpn rpp rpr rri rrk rrn rrp rrr ry- rye ryk ryn ryr ryy yee yei yek yen yep yer yey yie yii yin yip yir yki ykk ykn yne ynk ynn ynp yny yre yrn yrp yye yyy