water polo players wrestle for the ball while a goal keeper watches in front of a goal with an Angry Birds advertisement means there is an angry Birds ad at the water polo gam


Context: "Two water polo players wrestle for the ball while a goal keeper watches in front of a goal with an Angry Birds advertisement on the back of the net."
Hypothesis: There is an Angry Birds ad at the water polo game.
Based on the context, is the hypothesis true, false, or unknown?