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.

Input: Consider Input: 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.

Output: weakener


Input: Consider Input: Premise: Man on roof touching a shingle.
Hypothesis: Human on top of bulding grabbing a shingle.
Update: The man moves his hands over to the chimney and hangs onto it.

Output: weakener


Input: Consider Input: Premise: An artist painting a river scene, with a man in black shirt watching.
Hypothesis: An artist paints a river while his teacher watches.
Update: The man in the black shirt has a passport in his pocket.


Output: weakener