-er eee eel eem eer ees ele ell elm elr els em- eme eml emm emr ems ere erl erm err ers es- ese esl esm esr ess lee lel lem ler les lle lll llm llr lls lme lml lmm lmr lms lrm lrr lrs lse lsl lsm lsr lss m-r mee mel mem mer mes mle mll mlm mlr mls mme mml mmm mmr mms mre mrl mrm mrr mrs mse msl msm msr mss re- ree rel rem rer res rle rll rlm rlr rls rme rml rmm rmr rms rrl rrm rrr rrs rse rsl rsm rsr rss se- see sel sem ser ses sle sll slm slr sls sme sml smm smr sms sr- sre srl srm srr srs ss- sse ssl ssm ssr sss