In this task, you are given a premise, a hypothesis, and an update. The premise sentence describes a real-world situation and is always assumed to be true. The hypothesis sentence describes an assumption or inference that you might make about that situation having read the premise. The update provides additional information about the situation that might weaken or strengthen the hypothesis. A weakener is a statement that weakens the hypothesis, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.

[Q]: Premise: A black man stares angrily on the street.
Hypothesis: A black man on the street stares angrily after being robbed.
Update: There's someone yelling at a child across the street.
[A]: weakener


[Q]: Premise: A young boy dives to catch the ball during a baseball game.
Hypothesis: A young boy and his teammate both dive to catch a ball during the game.
Update: The boys collide and end up not even catching the ball.
[A]: strengthener


[Q]: Premise: A black and white dog is bounding down white steps.
Hypothesis: A dog is running down stairs.
Update: The dog is leaping through the air.
[A]:
weakener