-er eee eek eem een eeo eer eke eko ekr em- eme emk emm emn emo emr en- ene enk enm enn eno enr eo- eoe eok eom eon eoo eor ere erk erm ern ero err ke- kee kek kem ken keo ker kke kkk kkm kkn kkr kme kmk kmm kmo kn- kne knk knm knn kno knr koe kok kom kon koo kor krk krn kro krr m-o m-r mee mek mem men meo mer mke mkk mkm mkn mko mkr mme mmk mmm mmn mmo mmr mne mnk mnm mnn mno mnr moe mok mom mon moo mor mre mrk mrm mrn mro mrr ne- nee nek nem nen neo ner nke nkk nkm nkn nko nkr nme nmk nmm nmn nmo nmr nne nnk nnm nnn nno no- noe nok nom non noo nor nre nrk nrm nrn nro nrr oee oem oen oeo oer oke okk oko okr om- ome omm omn omo omr on- one onk onn ono onr oo- ook oom oon ooo oor or- ore ork orm orn oro orr re- ree rek rem ren reo rer rke rkk rkm rko rme rmm rmn rmo rmr rnm rnn rno rnr roe rok rom ron roo ror rrk rrm rrn rrr