-er -ey eee eef een eeo eer ees eey ef- efe eff efo efr efs en- ene enf enn eno enr ens eny eo- eoe eof eon eoo eor eos ere erf ern ero err ers ery es- ese esf esn eso esr ess esy eye eyn eyo eyr eys fee fef fen feo fer fes fey ffe fff ffn ffo ffr ffs ffy fne fnf fnn fnr fns foe fof fon foo for fos foy fre frf frn fro frr frs fry fse fsf fsn fso fsr fss fy- fye fyn fyo ne- nee nef nen neo ner nes ney nfe nff nfn nfo nfr nfs nne nnf nnn nno nns no- noe nof non noo nor nos noy nre nrf nrn nro nrr nrs nry nse nsf nsn nso nsr nss nsy nye nyf nyn nyo nys nyy oee oef oen oeo oer oes oey of- ofe off ofn ofo ofr ofs on- one onf onn ono onr ons ony oo- oof oon ooo oor oos or- ore orf orn oro orr ors ory os- ose osf osn oso osr oss oye oyo oys re- ree ref ren reo rer res rey rfe rff rfn rfo rfr rfs rnn rno rnr rns rny roe rof ron roo ror ros roy rrf rrn rrr rrs rse rsf rsn rso rsr rss ry- rye ryf ryn ryo ryr rys ryy se- see sef sen seo ser ses sey sfe sff sfn sfo sfr sfs sne snf snn sno snr sns sny soe sof son soo sor sos soy sr- sre srf srn sro srr srs sry ss- sse ssf ssn sso ssr sss sy- sye syn syr sys yee yef yen yeo yer yes yey yfe yff yfr yfs yne ynn yns yny yoe yof yon yoo yor yos yoy yre yrf yrn yro yrs yse yso ysr yss ysy yye yyf yys yyy