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: 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.
[A]: strengthener


[Q]: Premise: Two girls in red and blowing bubbles with gum.
Hypothesis: One child has challenged another to blow the biggest bubble.
Update: The girls are carefully controlling their breathing to make the bubbles bigger.
[A]: strengthener


[Q]: Premise: Beach volleyball player Dalhausser just blocked a spike from a Brazilian beach volleyball player.
Hypothesis: A person blocks a volleyball on the beach in summer.
Update: The volleyball players are playing at the Olympics on a manufactured court inside a stadium.
[A]:
weakener