pell[9], peng[8], perl[8], gell[7], leng[6], nell[6], gern[5], lern[5],
per[6], rep[6], gel[5], leg[5], eng[4], gen[4], erg[4], ger[4], reg[4], ern[3], ren[3],
ne[2], er[2], re[2],
