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: Four dark-haired girls walk the hall toward a bank of lockers.
Hypothesis: Girls are at the gym.
Update: They are between classes.

Output: weakener


Input: Consider Input: Premise: A long-haired young man skateboarding on the rails on a cloudy day.
Hypothesis: The boy is going to do a pop-shove it.
Update: The man is in a hurry to get to his job.

Output: weakener


Input: Consider Input: Premise: Two women in skirts and baseball caps pass another woman in a skirt on the street.
Hypothesis: The baseball cap has a logo of her favorite sports team on it.
Update: The baseball caps were bought at a sports stadium.


Output: strengthener