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 small group of people are in a small red boat and it is in the air over the ocean.
Hypothesis: The people in the boat are being rescued.
Update: The people haven't eaten for five days.

Ex Output:
strengthener


Ex Input:
Premise: A young man is in practice.
Hypothesis: A boy practices his sport.
Update: The boy is on a basketball court.

Ex Output:
strengthener


Ex Input:
Premise: A man plays electric guitar on his knees.
Hypothesis: Jimi Hendrix wowed the crowd yet again, dropping to his knees before finally setting his guitar on fire.
Update: A concert in the 1990's.

Ex Output:

weakener