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.

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

Output: strengthener


Input: Consider Input: Premise: A woman with red-hair is wearing sunglasses.
Hypothesis: The woman is outside.
Update: She is strolling on the beach.

Output: strengthener


Input: Consider Input: Premise: A man in a suit and top hat and a woman in a blue Victorian dress sitting outside at a table.
Hypothesis: A man and a woman are seated outdoors under the moonlight.
Update: There are fireworks going off.


Output: strengthener