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: A man in yellow rain gear on a boat
Hypothesis: A man is getting soaked on the boat.
Update: The man wipes his face with a towel.

Output: strengthener


Input: Consider Input: Premise: A man wearing black sits outside under palm trees near green and blue chairs.
Hypothesis: It is sunny outside.
Update: He is glistening with tanning oil

Output: strengthener


Input: Consider Input: Premise: Three men playing baseball and the one wearing a red helmet is sliding to the plate.
Hypothesis: The men are married.
Update: The three wives have become good friends with each other.


Output: strengthener