pfe[8], fen[7], nef[7], ref[7], keg[6], dek[5], gen[5], erg[5], den[4], end[4], nep[4], pen[4], der[4], red[4], ker[4], rek[4], per[4], rep[4], ner[3], ren[3],
ef[6], fe[6], de[3], pe[3], en[2], er[2], re[2],
