Task: Question Generation
Input (English): context: A person is sliding four bricks across four hard surfaces. The first surface is covered with gravel, the second surface is covered with grease, the third surface is covered with rubber, and the fourth surface is covered with carpet.<sep>group: sliding <sep>question: Which brick slides the longest distance?<sep>A: gravel<sep>B: grease<sep>C: rubber<sep>D: carpet
Output (English): The surface covered with grease is the easiest for the brick to slide across.