sentence: A man in grey throws a ball at a man in white. sentence:  The man in white makes a layup shot and runs out of camera frame while the man in gray retrieves the ball. sentence:  A second man in white throws a ball at the first man in white out of camera frame. sentence:  The first man in white runs in and makes a layup shot while the second man retrieves the ball. sentence:  The exercise with all three men is repeated.