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