Input (grade 8): Lefebvre entered the Ã cole nationale supÃ rieure des Beaux-Arts in 1852 and was a pupil of LÃ on Cogniet.
Output (grade 3): Lefebvre went to the Ã cole nationale supÃ rieure des Beaux-Arts in 1852. He was a pupil of LÃ on Cogniet.