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: Two boys walking down the street, with one giving a peace sign.
Hypothesis: A boy is giving his friend the peace sign as they walk down the street.
Update: The boys are on their way to an anti-war rally.

Output: strengthener


Input: Consider Input: Premise: the peoples sitting in the chair
Hypothesis: People are sitting in the chair with their eyes closed.
Update: The horror movie that the audience is watching is too disturbing to look at.

Output: strengthener


Input: Consider Input: Premise: A girl climbs an inflatable wall over water.
Hypothesis: A girl is at a water park.
Update: The girl watched another kid climb over the wall first


Output: strengthener