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.

Ex Input:
Premise: An elderly man uses his walking stick to poke into a hole in the ground.
Hypothesis: A guy sticks his wooden stick in the ground.
Update: The stick is vulnerable to termites.

Ex Output:
strengthener


Ex Input:
Premise: A man preparing his net for fishing.
Hypothesis: A young man fixes holes in a net before fishing for bait fish.
Update: The man's face is wrinkled.

Ex Output:
weakener


Ex Input:
Premise: An older man dressed like an elevator attendant is standing outside at theme park.
Hypothesis: There was a gentleman that was dressed ready to work at the hotel.
Update: The man just clocked in..

Ex Output:

strengthener