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 family is sledding in the snow.
Hypothesis: A big family is sledding in the snow.
Update: The family is in China where the one child policy is implemented
weakener

Premise: A woman is standing near the water, looks to be throwing something.
Hypothesis: The woman is skipping rocks.
Update: The woman is looking for turtles.
weakener

Premise: An african american man is sitting.
Hypothesis: An african american man is sitting on a chair.
Update: The item he is sitting on has 4 legs and a back.

strengthener