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 person is laying in the grass in front of the ocean.
Hypothesis: The person is having a picnic.
Update: The person has a basket and a blanket.

Ex Output:
strengthener


Ex Input:
Premise: A man, woman, child sitting on benches waiting for the bus.
Hypothesis: The people are sitting outside.
Update: The wind cuts through you like a knife.

Ex Output:
strengthener


Ex Input:
Premise: Two children in swimming trunks are standing under a water sprinkler while a crowd looks on.
Hypothesis: Two brothers play in the water without even noticing the crowd
Update: One boy's mother calls him home for lunch.

Ex Output:

weakener