instruction:
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.
question:
Premise: Two men playing stringed instruments.
Hypothesis: Two guys are preparing for a concert.
Update: They sit in front of their cases in a local park.
answer:
weakener


question:
Premise: Couple strolling hand in hand past shop in city.
Hypothesis: A man and woman are walking on a sidewalk in a shopping mall.
Update: It's cold outside but they are not wearing jackets.
answer:
strengthener


question:
Premise: People with water guns and bottles are having a water fight.
Hypothesis: They are playing in the park.
Update: they roll around the grass while fighting
answer:

strengthener