peng[8], fern[7], gern[5], nerd[4],
feg[7], per[6], rep[6], eng[4], gen[4], erg[4], ger[4], reg[4], den[3], end[3], der[3], erd[3], red[3], ern[3], ren[3],
ne[2], er[2], re[2],
