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.
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Question: Premise: The black dog is by a soccer ball and the brown dog is running.
Hypothesis: Two dogs are playing together on a soccer field.
Update: The dogs are playing in their backyard.

Answer: weakener


Question: Premise: There are buildings in the background.
Hypothesis: buildings in the background are taking up most of the area
Update: There is a small community of trailer homes.

Answer: weakener


Question: Premise: A man in a striped shirt is sharpening a tool on a grinding mill.
Hypothesis: The man is in his work space at home in his garage.
Update: The man's supervisor is overlooking the work.

Answer:
weakener