-er eee eek eel eem eer eke ekl ekr ele elk ell elm elr em- eme emk eml emm emr ere erk erl erm err ke- kee kek kel kem ker kke kkk kkl kkm kkr kl- klm klr kme kmk kml kmm krk krl krr lee lek lel lem ler lkl lkr lle llk lll llm llr lme lmk lml lmm lmr lrk lrm lrr m-r mee mek mel mem mer mke mkk mkl mkm mkr mle mlk mll mlm mlr mme mmk mml mmm mmr mre mrk mrl mrm mrr re- ree rek rel rem rer rke rkk rkm rle rll rlm rlr rme rml rmm rmr rrk rrl rrm rrr