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 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
strengthener

Premise: A woman is looking out the window.
Hypothesis: The woman is enjoying the view outside.
Update: The window looks out onto a flower-filled meadow.
strengthener

Premise: With a yellow building in the background, several children are looking in the air.
Hypothesis: Several children look into the air as a strange looking plane passes by.
Update: The children are distracted by a flock of strange looking birds that are flying in formation.

weakener