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.

Example Input: Premise: A crowd of people are holding signs and protesting against school cuts.
Hypothesis: A crowd of people chanting.
Update: A crowd of students and teachers chanting, "No layoffs."
Example Output: strengthener

Example Input: Premise: Here is a picture of a man praying and a woman walking home.
Hypothesis: The man is praying to God.
Update: The man is addressing the creator and ruler of the universe.
Example Output: strengthener

Example Input: Premise: Man with no shirt and woman wearing all black are running in the sand.
Hypothesis: The people are at the beach.
Update: They are running to a cactus.
Example Output:
weakener