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: A bunch of people standing on sand.
Hypothesis: people are standing on a beach.
Update: Everyone is standing barefoot on hot sand.

Ex Output:
strengthener


Ex Input:
Premise: A man is driving a white van sprayed painted with graffiti.
Hypothesis: A man is driving away from some cops.
Update: The man forgot his wallet at work.

Ex Output:
weakener


Ex Input:
Premise: The woman in the blue skirt is sleeping on a cardboard box under a picture of Mary and baby Jesus.
Hypothesis: A homeless woman sleeps under the protective gaze of the Blessed Mother.
Update: The woman has a donation cup in front of her.

Ex Output:

strengthener