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: two girls wearing a yellow shirt, one wearing a green shirt, and the last wearing a pink are each looking to the side
Hypothesis: Girls are looking at a sign on the wall.
Update: They all have a crush on the boy walking by.

Ex Output:
weakener


Ex 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.

Ex Output:
weakener


Ex Input:
Premise: Three people are standing two are women playing instruments the women are dressed in robes with a stained glass window behind them.
Hypothesis: the people are tourists
Update: The people standing are taking pictures

Ex Output:

strengthener