rufer[8], gurre[6],
fuge[8], frug[8], freu[7], rufe[7], ufer[7], ufre[7], gurr[5],
feg[7], fug[7], ruf[6], erg[4], ger[4], reg[4], gur[4], reu[3], ure[3],
er[2], re[2], ur[2],
