ferm[9], tref[9], temp[7], perm[6], metr[6], term[6], trem[6], pert[6], trep[6], nerp[5], rent[5], tern[5], tren[5],
pfe[8], fet[8], tef[8], fen[7], nef[7], ref[7], met[5], pet[5], men[4], nem[4], nep[4], pen[4], mer[4], rem[4], per[4], rep[4], net[4], ten[4], ret[4], ter[4], ner[3], ren[3],
ef[6], fe[6], em[3], me[3], pe[3], et[3], te[3], en[2], er[2], re[2],
