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.

Premise: Two men and a woman running together for a competition.
Hypothesis: The men and woman are teaming up.
Update: They are on a relay team
strengthener

Premise: A man running across the grass towards a woman.
Hypothesis: A man is running to his wife.
Update: The man has a police uniform on
weakener

Premise: Person in red-checked jacket with fur collar and dark stocking cap with head bowed.
Hypothesis: The person is praying.
Update: The person is quiet.

strengthener