Task: Text Categorization
Input (English): Odilon Redon depicted one of these objects embedded in a cube using charcoal and white chalk on yellow tone paper. In Michael Baxandall's Painting and Renaissance in Fifteenth Century Italy, he suggests that artists employ a "period" one. A different painting by Odilon Redon shows a creature with a pronounced one of these body parts extending from the background of a mountain. A section of a treatise which compares Doric temples to automobiles and argues that airplanes embody the machine age is titled for these parts, which do not function the way they should - that section of a larger work appears in Towards a New Architecture. A calf was famously used to help film a scene involving Simone Mareuil, who has this body part slashed in Un Chien Andalou. A light bulb is embedded in one in Picasso's painting Guernica. For 10 points, identify this body part which may or may not follow you around in The Laughing Cavalier.
Output (English): Fine Arts