TASK DEFINITION: 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.
PROBLEM: Premise: Two boys walking down the street, with one giving a peace sign.
Hypothesis: A boy is giving his friend the peace sign as they walk down the street.
Update: The boys are on their way to an anti-war rally.

SOLUTION: strengthener

PROBLEM: Premise: Two football teams lined up before the hike.
Hypothesis: Two football teams line up during the superbowl for the hike.
Update: Ad time at the event is absurdly expensive.

SOLUTION: strengthener

PROBLEM: Premise: A man handing out something to a very large crowd.
Hypothesis: The man is giving out candy.
Update: The items he is handing out are made out of metal.

SOLUTION:
weakener