-er eee eek eel eem eer ees eie eii eik eil eim eir eis eke eki ekl ekr eks ele eli elk ell elm elr els em- eme emi emk eml emm emr ems ere eri erk erl erm err ers es- ese esi esk esl esm esr ess ie- iee iei iek iel iem ier ies iie iii iil iim iir iis ike iki ikk ikl ikr iks il- ile ili ilk ill ilm ilr ils im- ime imi iml imm ims ir- ire iri irk irl irm irr irs is- ise isi isk isl ism isr iss ke- kee kei kek kel kem ker kes kie kii kik kil kim kir kis kke kki kkk kkl kkm kkr kks kl- kli klm klr kls kme kmi kmk kml kmm kms kri krk krl krr krs kse ksi ksk ksl ksm ksr kss lee lei lek lel lem ler les lie lii lik lil lim lir lis lkl lkr lks lle lli llk lll llm llr lls lme lmi lmk lml lmm lmr lms lri lrk lrm lrr lrs lse lsi lsk lsl lsm lsr lss m-r mee mei mek mel mem mer mes mi- mie mii mik mil mim mir mis mke mkk mkl mkm mkr mks mle mli mlk mll mlm mlr mls mme mmi mmk mml mmm mmr mms mre mri mrk mrl mrm mrr mrs mse msi msk msl msm msr mss re- ree rei rek rel rem rer res rie rii rik ril rim rir ris rke rkk rkm rks rle rli rll rlm rlr rls rme rmi rml rmm rmr rms rri rrk rrl rrm rrr rrs rse rsi rsk rsl rsm rsr rss se- see sei sek sel sem ser ses sie sii sik sil sim sir sis sk- ske ski skk skl skm skr sks sle sli slk sll slm slr sls sme smi smk sml smm smr sms sr- sre sri srk srl srm srr srs ss- sse ssi ssk ssl ssm ssr sss