-er -ey eee eek een eeo eer ees eey eie eii eik ein eio eir eis eke eki eko ekr eks eky en- ene eni enk enn eno enr ens eny eo- eoe eoi eok eon eoo eor eos ere eri erk ern ero err ers ery es- ese esi esk esn eso esr ess esy eye eyn eyo eyr eys ie- iee iei iek ien ier ies iey iie iii iin iio iir iis ike iki ikk iko ikr iks in- ine ini ink inn ino inr ins iny io- ioe ioi ion ioo ior ios ir- ire iri irk irn iro irr irs iry is- ise isi isk isn iso isr iss isy iye iyo iyr iys iyy ke- kee kei kek ken keo ker kes key kie kii kik kin kio kir kis kke kki kkk kkn kkr kks kky kn- kne kni knk knn kno knr koe koi kok kon koo kor kos koy kri krk krn kro krr krs kry kse ksi ksk ksn kso ksr kss kye kyn kyo kyr kys n-i ne- nee nei nek nen neo ner nes ney nie nii nik nin nio nir nis nke nki nkk nkn nko nkr nks nky nne nni nnk nnn nno nns no- noe noi nok non noo nor nos noy nre nri nrk nrn nro nrr nrs nry nse nsi nsk nsn nso nsr nss nsy nye nyk nyn nyo nys nyy o-i oee oei oen oeo oer oes oey oie oii oik oin oio oir ois oke oki okk oko okr oks on- one oni onk onn ono onr ons ony oo- ooi ook oon ooo oor oos or- ore ori ork orn oro orr ors ory os- ose osi osk osn oso osr oss oye oyi oyo oys re- ree rei rek ren reo rer res rey rie rii rik rin rio rir ris riy rke rkk rko rks rky rni rnn rno rnr rns rny roe roi rok ron roo ror ros roy rri rrk rrn rrr rrs rse rsi rsk rsn rso rsr rss ry- rye ryk ryn ryo ryr rys ryy se- see sei sek sen seo ser ses sey sie sii sik sin sio sir sis sk- ske ski skk sko skr sks sky sne sni snk snn sno snr sns sny soe soi sok son soo sor sos soy sr- sre sri srk srn sro srr srs sry ss- sse ssi ssk ssn sso ssr sss sy- sye syi syk syn syr sys yee yei yek yen yeo yer yes yey yie yii yin yio yir yis yki ykk ykn yne ynk ynn yns yny yoe yoi yok yon yoo yor yos yoy yre yrn yro yrs yse ysi ysk yso ysr yss ysy yye yys yyy