quer[13], core[8], cour[8], cure[7], ergo[6], oger[6], euro[5], roue[5],
cer[6], ego[5], geo[5], gor[5], erg[4], ger[4], reg[4], gur[4], reu[3], ure[3],
go[4], er[2], re[2], ur[2],
