TASK DEFINITION: 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.
PROBLEM: Premise: Dancers a standing on a sidewalk.
Hypothesis: Some dancers are waiting for the bus.
Update: The dancers are headed on a tour.

SOLUTION: strengthener

PROBLEM: Premise: Family around table eating.
Hypothesis: the family is eating thanksgiving dinner
Update: There are hamburgers and hot dogs on the table.

SOLUTION: weakener

PROBLEM: Premise: A young boy at a party, dancing enthusiastically.
Hypothesis: A young boy twerks at a party
Update: The dance floor is very cramped.

SOLUTION:
weakener