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: An African child attempts a headstand on the front of a boat painted blue and white in water next to a field of crops.
Hypothesis: A child is at a lake.
Update: The name of the boat is The Ocean Fisher

SOLUTION: weakener

PROBLEM: Premise: A woman wearing a black jacket is waiting for a train to arrive.
Hypothesis: A person is running late for work.
Update: The woman is impatiently checking her watch.

SOLUTION:
strengthener