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: A man in a gray t-shirt, hat and jeans, cutting a circle in the sidewalk, with an audience of men in the background.
Hypothesis: The men in the T-shirt is cutting a hole for a manhole in the sidewalk.
Update: The hole isn't over a sewer.
answer:
weakener


question:
Premise: Many people are walking or standing on a busy city sidewalk.
Hypothesis: An angry mob discussing how to storm a building.
Update: They are outside a business that was running a scam and want their money back.
answer:
strengthener


question:
Premise: A boy in swim trunks does a backflip into the ocean while mountains show through the fog behind him.
Hypothesis: The beach is on the West Coast.
Update: The sunrise is visible over the ocean.
answer:

weakener