sentence: Two teams of girls are on a field playing field hockey. sentence:    The game is stopped as a girl with a blue jersey grabs the ball in her  hand and puts it in play. sentence:   As the the girls chase the ball around at the other side of the field a whistle is blown and the game is on hold as the girls go their positions on the field. sentence:   The game starts again and girls are running to the other side of the field. sentence:   As they fight for the ball a whistle is blown and the game is stopped again.