nepem[7], penem[7], repem[7], mener[6], renem[6], neper[6], pener[6],
peem[6], perm[6], enem[5], erem[5], nerp[5],
mee[4], men[4], nem[4], nep[4], pen[4], mer[4], rem[4], per[4], rep[4], ner[3], ren[3],
em[3], me[3], pe[3], ee[2], en[2], er[2], re[2],
