-er eee eek eem een eer ees eke ekr eks eku em- eme emk emm emn emr ems emu en- ene enk enm enn enr ens enu ere erk erm ern err ers eru es- ese esk esm esn esr ess esu eu- eue eun eur eus ke- kee kek kem ken ker kes kke kkk kkm kkn kkr kks kku kme kmk kmm kms kmu kn- kne knk knm knn knr knu krk krn krr krs kru kse ksk ksm ksn ksr kss ksu kue kuk kum kun kur kus kuu m-r mee mek mem men mer mes meu mke mkk mkm mkn mkr mks mku mme mmk mmm mmn mmr mms mmu mne mnk mnm mnn mnr mns mnu mre mrk mrm mrn mrr mrs mru mse msk msm msn msr mss msu mue muk mum mun mur mus muu ne- nee nek nem nen ner nes neu nke nkk nkm nkn nkr nks nku nme nmk nmm nmn nmr nms nmu nne nnk nnm nnn nns nnu nre nrk nrm nrn nrr nrs nru nse nsk nsm nsn nsr nss nsu nue nuk num nun nur nus nuu re- ree rek rem ren rer res reu rke rkk rkm rks rku rme rmm rmn rmr rms rnm rnn rnr rns rnu rrk rrm rrn rrr rrs rru rse rsk rsm rsn rsr rss rsu rue ruk rum run rur rus ruu se- see sek sem sen ser ses seu sk- ske skk skm skr sks sku sme smk smm smn smr sms smu sne snk snm snn snr sns snu sr- sre srk srm srn srr srs ss- sse ssk ssm ssn ssr sss ssu sue suk sum sun sur sus suu uee uem uen uer ues uke ukk ukn ukr uku um- ume umm umn umr ums umu un- une unk unm unn unr uns unu ur- ure urk urm urn urr urs uru use usk usm usn usr uss usu uue uum uun uur uus uuu