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: A woman in a white shirt is wearing blue goggles while speaking to someone with her hands.
Hypothesis: A woman wearing goggles is yelling and waving her hands at someone.
Update: There is a drowned person in the pool and the woman is waving for people to get back.

Ex Output:
strengthener


Ex Input:
Premise: A pipe with one hand on it.
Hypothesis: The pipe is broken.
Update: There is water flowing through the pipe.

Ex Output:
weakener


Ex Input:
Premise: There is a man wrapped in a blanket of some sort sliding down a hill that is covered in snow.
Hypothesis: A man goofing around outside in the winter is keeping warm using a blanket.
Update: The blanket is wrapped tightly around him from head to toe.

Ex Output:

strengthener