TASK DEFINITION: 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.
PROBLEM: Premise: A man pushing a cart near the subway.
Hypothesis: The man is selling hotdogs.
Update: Steam comes of of the cart.

SOLUTION: strengthener

PROBLEM: Premise: Many people sitting in chairs at a presentation.
Hypothesis: The people are very bored
Update: Everyone is looking eagerly at the presenter.

SOLUTION: weakener

PROBLEM: Premise: Two toddlers sitting in mom's lap.
Hypothesis: Two toddlers are being comforted by their mother after falling off the slide.
Update: The toddlers are laughing.

SOLUTION:
weakener