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 Q]: Premise: Two men wearing sunglasses and walking outside.
Hypothesis: The two men are siblings.
Update: The men have different parents.
[EX A]: weakener

[EX Q]: Premise: A man in a dark pants lifts his leg while five girls wearing rollerskates gather near him.
Hypothesis: A coach gives advice to his team.
Update: The man is a celebrity
[EX A]: weakener

[EX Q]: Premise: A child runs toward the water at a beach.
Hypothesis: A little boy running towards the ocean.
Update: The little girl is chasing after the doll that had washed away from the shore.
[EX A]:
weakener