mem[5], cen[4], cne[4], men[4], nem[4], cer[4], mer[4], rem[4], ces[4], mes[4], sem[4], ner[3], ren[3], sen[3], ser[3],
ce[3], em[3], me[3], en[2], er[2], re[2], es[2], se[2],
