Task: Question Generation
Input (English): context: Four balls are dropped. The first is dropped from the height equivalent of a book, the second is dropped from the height equivalent of a table, the third is dropped from the height equivalent of a house, and the fourth is dropped from the height equivalent of a mountain.<sep>group: height <sep>question: The ball dropped from the height of what takes the longest amount of time to fall?<sep>A: book<sep>B: table<sep>C: house<sep>D: mountain
Output (English): The ball dropped from the height of the mountain takes the longest amount of time to fall.