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.

Q: Premise: A surfer rides his surfboard at the start of a wave.
Hypothesis: There are several people surfing on big waves.
Update: The surfer worries that nobody will see him fall.

A: weakener
****
Q: Premise: A man is playing a guitar on stage.
Hypothesis: Jimi Hendriplays live for an eager crowd
Update: The crowd cheers as the song ends.

A: strengthener
****
Q: Premise: A man sitting playing guitar and mouth piece at the same time.
Hypothesis: A man is sitting down on a stage and playing his guitar for a crowd of people.
Update: The man is rehearsing in a basement.

A:
weakener
****