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 man is driving a white van sprayed painted with graffiti.
Hypothesis: A man is driving away from some cops.
Update: The man forgot his wallet at work.
weakener

Premise: A man in a hat and coat is holding a pitchfork and posing for a picture.
Hypothesis: The man is on a farm
Update: There are chickens and cows all around him.
strengthener

Premise: The woman in the green shirt and her friend are looking at something.
Hypothesis: The person is about to buy food.
Update: The friend picks up a stuffed dog.

weakener