-er a-a aaa aae aam aan aar aea aee aem aen aer ama ame amm amn amr an- ana ane anm ann anr ar- ara are arm arn arr eaa eae eam ean ear eea eee eem een eer em- ema eme emm emn emr en- ena ene enm enn enr era ere erm ern err m-r maa mae mam man mar mea mee mem men mer mma mme mmm mmn mmr mna mne mnm mnn mnr mra mre mrm mrn mrr naa nae nam nan nar ne- nea nee nem nen ner nma nme nmm nmn nmr nna nne nnm nnn nra nre nrm nrn nrr ra- raa rae ram ran rar re- rea ree rem ren rer rma rme rmm rmn rmr rna rnm rnn rnr rra rrm rrn rrr