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: Young rock wall climbers brave the massive structure with precision and ease.
Hypothesis: The climbers are big.
Update: The climbers are college students.

Output: strengthener


Input: Consider Input: Premise: Three people play instruments in front of a crowd of people.
Hypothesis: A group of people enjoys listening to a live performance of instrumental music.
Update: The people are holding their ears and complaining.

Output: weakener


Input: Consider Input: Premise: A brown and white dog is running through an uncut field that has mushrooms.
Hypothesis: Two dogs are running threw a field while their owner looks on.
Update: The two dogs are strays.


Output: weakener