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 child is wearing a white coat while squatting down in front of a person.
Hypothesis: A child is smiling with another person.
Update: The other person is giving the child a toy.
strengthener

Premise: Four adults eat while sitting on a tile floor.
Hypothesis: Two couples eat food on a kitchen floor.
Update: The people are on a double date.
strengthener

Premise: A large truck parked near a garage that says perfumes on the front.
Hypothesis: A truck is parked and someone sells perfumes out of it.
Update: the driver comes out and drives the truck further

weakener