circe[11], coeur[9], curie[8],
core[8], coir[8], cour[8], cure[7], roie[5], euro[5], roue[5],
cer[6], oie[4], roi[4], ire[3], reu[3], ure[3],
ei[2], er[2], re[2], ui[2], ur[2],
