-er -ey eee eef eek een eer ees eey ef- efe eff efi efr efs eie eif eii eik ein eir eis eke ekf eki ekr eks eky en- ene enf eni enk enn enr ens eny ere erf eri erk ern err ers ery es- ese esf esi esk esn esr ess esy eye eyn eyr eys fee fef fei fek fen fer fes fey ffe fff ffi ffk ffn ffr ffs ffy fie fif fii fik fin fir fis fkf fki fkk fne fnf fni fnk fnn fnr fns fre frf fri frk frn frr frs fry fse fsf fsi fsk fsn fsr fss fy- fye fyi fyk fyn i-f ie- iee ief iei iek ien ier ies iey ife iff ifi ifn ifr ifs ify iie iif iii iin iir iis ike ikf iki ikk ikr iks in- ine inf ini ink inn inr ins iny ir- ire irf iri irk irn irr irs iry is- ise isf isi isk isn isr iss isy iye iyr iys iyy ke- kee kef kei kek ken ker kes key kff kfi kfs kie kif kii kik kin kir kis kke kki kkk kkn kkr kks kky kn- kne knf kni knk knn knr krf kri krk krn krr krs kry kse ksf ksi ksk ksn ksr kss kye kyn kyr kys n-i ne- nee nef nei nek nen ner nes ney nfe nff nfi nfk nfn nfr nfs nie nif nii nik nin nir nis nke nkf nki nkk nkn nkr nks nky nne nnf nni nnk nnn nns nre nrf nri nrk nrn nrr nrs nry nse nsf nsi nsk nsn nsr nss nsy nye nyf nyk nyn nys nyy re- ree ref rei rek ren rer res rey rfe rff rfi rfk rfn rfr rfs rie rif rii rik rin rir ris riy rke rkf rkk rks rky rni rnn rnr rns rny rrf rri rrk rrn rrr rrs rse rsf rsi rsk rsn rsr rss ry- rye ryf ryk ryn ryr rys ryy se- see sef sei sek sen ser ses sey sfe sff sfi sfk sfn sfr sfs sie sif sii sik sin sir sis sk- ske skf ski skk skr sks sky sne snf sni snk snn snr sns sny sr- sre srf sri srk srn srr srs sry ss- sse ssf ssi ssk ssn ssr sss sy- sye syi syk syn syr sys yee yef yei yek yen yer yes yey yfe yff yfr yfs yie yif yii yin yir yis yki ykk ykn yne ynk ynn yns yny yre yrf yrn yrs yse ysi ysk ysr yss ysy yye yyf yys yyy