sentence: A man demonstrates how to train a dog to do tricks by teaching him how to fetch a frisbee in an indoor gymnasium. sentence:   The man begins standing next to the dog while talking to the camera and holding a frisbee in each hand. sentence:   The man walks away from the dog who perks up the ears as the man walks away. sentence:    The man then begins throwing frisbees wildly into the air at which point the dog begins to chase the frisbees and catch them at times, in mid air.