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: 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.
[A]: weakener


[Q]: Premise: There are three people on the dock by the boats.
Hypothesis: Three people prepare for a fishing trip.
Update: The people are wearing search and rescue gear
[A]: weakener


[Q]: Premise: A girl trains her white dog with treats.
Hypothesis: A girl is training her dog to sit.
Update: The girl keeps pushing the dog's butt down.
[A]:
strengthener