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: Lecture takes place in casual atmosphere.
Hypothesis: The lecture is lengthy.
Update: Most people had packed a lunch.

A: strengthener
****
Q: Premise: A man in a bright yellow jacket and helmet sits astride a motorcycle chatting with a man in a blue sweatshirt.
Hypothesis: Two men are talking about their bikes.
Update: One of the men points at the other man’s bike

A: strengthener
****
Q: Premise: A group of people surrounding a man in a black and red striped shirt asking for his autograph.
Hypothesis: A famous actor tries to escape a group of autograph-hungry people.
Update: The group are asking a singer for their autograph.

A:
weakener
****