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 surfer rides his surfboard at the start of a wave.
Hypothesis: There are several people surfing on big waves.
Update: The surfer worries that nobody will see him fall.

Output: weakener


Input: Consider Input: Premise: Several men helping each other pull in a fishing net.
Hypothesis: The men are fishing.
Update: There is an old tire in the net.

Output: weakener


Input: Consider Input: Premise: People in a courtyard plaza are sitting and standing.
Hypothesis: People are gathered for a mayors speech in a courtyard plaza
Update: A priest is saying prayers over a large crowd of people chanting


Output: weakener