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.
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Question: Premise: a group of man are sitting outside playing music.
Hypothesis: A jam session is taking place in the park.
Update: An impromptu crowd gathers around.

Answer: strengthener


Question: Premise: Erotic show with guests looking onwards.
Hypothesis: Some guests are relatives.
Update: There are two people who look identical to one of the dancers.

Answer: strengthener


Question: Premise: A couple are waiting near their bags, as some walkers pass.
Hypothesis: The couple are at the airport waiting for their flight.
Update: The couple have their passports in hand.

Answer:
strengthener