-er eee eel eem een eer ele ell elm eln elr em- eme eml emm emn emr en- ene enl enm enn enr ere erl erm ern err lee lel lem len ler lle lll llm lln llr lme lml lmm lmn lmr lne lnl lnm lnn lnr lrm lrn lrr m-r mee mel mem men mer mle mll mlm mln mlr mme mml mmm mmn mmr mne mnl mnm mnn mnr mre mrl mrm mrn mrr ne- nee nel nem nen ner nle nll nlm nln nlr nme nml nmm nmn nmr nne nnl nnm nnn nre nrl nrm nrn nrr re- ree rel rem ren rer rle rll rlm rln rlr rme rml rmm rmn rmr rnm rnn rnr rrl rrm rrn rrr