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: A man pushing a cart near the subway.
Hypothesis: The man is selling hotdogs.
Update: Steam comes of of the cart.
strengthener

Premise: 4 men are sitting at a table deep in thought.
Hypothesis: The men are thinking about their mother.
Update: The men are comparing there parents
strengthener

Premise: The surfer in the black bodysuit rides a wave off the coast
Hypothesis: The surfer is surfing in the ocean.
Update: The surfer is at a surfing contest

strengthener