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.

Ex Input:
Premise: What a pretty red convertible was in the parade that night.
Hypothesis: The convertible top was down.
Update: It was a balmy, starry night.

Ex Output:
strengthener


Ex Input:
Premise: A blond little boy is standing by a fence.
Hypothesis: The boy is waiting for his friends to come over.
Update: he is waving to boys walking towards him.

Ex Output:
strengthener


Ex Input:
Premise: A child runs toward the water at a beach.
Hypothesis: A little boy running towards the ocean.
Update: The water is still.

Ex Output:

weakener