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: 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

PROBLEM: Premise: A pipe with one hand on it.
Hypothesis: The pipe is broken.
Update: The pipe was as good as new.

SOLUTION: weakener

PROBLEM: Premise: A group of people stand by a body of water.
Hypothesis: A group of men and women are standing by a lake.
Update: the group is renting a nearby lake house for the weekend

SOLUTION:
strengthener