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 brown dog splashing through a puddle on a lawn
Hypothesis: The dog plays in the puddle during the rainstorm.
Update: Its owner took it to the dog park

SOLUTION: strengthener

PROBLEM: Premise: An old man juggling fire outside a street corner.
Hypothesis: A street performer is juggling.
Update: A man lost his balance and is fumbling items.

SOLUTION: weakener

PROBLEM: Premise: Child experiences new world
Hypothesis: The boy is discovering new paths in the woods.
Update: He is surrounded by trees.

SOLUTION:
strengthener