sentence: Two boys play ping pong across a large ping pong table outdoors while a third boy watches from the sidelines. sentence:  A boy in a t shirt with a wing graphic on it hits the ball towards the other shirtless player. sentence:    The shirtless player returns the serve and the boy with the t-shirt misses the ball and has to pick it up and throw it to the other player for a re-serve. sentence:   The two begin playing again while the boy in the middle on the sidelines observes the game.