Task: Question Answering
Input (English): Passage: I was watching a tennis match between Roger and Daniel . They picked up their tennis rackets . Roger picked up the tennis ball and threw it in the air . The ball flew to Daniel 's right side . Daniel ran to his right side . Daniel used his tennis racket to hit the ball toward Roger 's left side . Daniel went to his left side and hit the ball again , this time toward Roger 's right side . Roger had also ran to his right side and hit the ball the same way . It went on for three hours . As Daniel hit the ball , Roger slipped . As Roger was getting up , the ball whooshed past him . Roger lost the game and Daniel won . Question: Who were passing the ball back and fourth? Option1: roger and daniel Option2: The tennis racket
Output (English): roger and daniel