-er eee eek eem een eer ees eke ekr eks em- eme emk emm emn emr ems en- ene enk enm enn enr ens ere erk erm ern err ers es- ese esk esm esn esr ess ke- kee kek kem ken ker kes kke kkk kkm kkn kkr kks kme kmk kmm kms kn- kne knk knm knn knr krk krn krr krs kse ksk ksm ksn ksr kss m-r mee mek mem men mer mes mke mkk mkm mkn mkr mks mme mmk mmm mmn mmr mms mne mnk mnm mnn mnr mns mre mrk mrm mrn mrr mrs mse msk msm msn msr mss ne- nee nek nem nen ner nes nke nkk nkm nkn nkr nks nme nmk nmm nmn nmr nms nne nnk nnm nnn nns nre nrk nrm nrn nrr nrs nse nsk nsm nsn nsr nss re- ree rek rem ren rer res rke rkk rkm rks rme rmm rmn rmr rms rnm rnn rnr rns rrk rrm rrn rrr rrs rse rsk rsm rsn rsr rss se- see sek sem sen ser ses sk- ske skk skm skr sks sme smk smm smn smr sms sne snk snm snn snr sns sr- sre srk srm srn srr srs ss- sse ssk ssm ssn ssr sss