pfe[8], fet[8], tef[8], fen[7], nef[7], fes[7], hep[6], het[6], hen[5], hes[5], edt[5], pet[5], pst[5], den[4], end[4], nep[4], pen[4], des[4], sep[4], pss[4], net[4], ten[4], set[4], tss[4], sen[3],
ef[6], fe[6], eh[4], he[4], de[3], pe[3], et[3], te[3], ts[3], en[2], es[2], se[2],
