coeur[9], furor[9], rufer[8],
core[8], orfe[8], fror[8], cour[8], cure[7], freu[7], rufe[7], ufer[7], ufre[7], euro[5], roue[5],
ufo[7], cer[6], ruf[6], reu[3], ure[3],
er[2], re[2], ur[2],
