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 in a white tee-shirt is looking at a charcoal grill with a bag of charcoal sitting beside the grill.
Hypothesis: The grill is hot and ready to go.
Update: The man's hand is touching the grill.
weakener

Premise: A black and white dog is playing with a large brown cow.
Hypothesis: A dog is let loose on a farm and goes up to a cow wanting to play.
Update: The dog is excited and starts to pet the cow
strengthener

Premise: The setting sun outlines a group of four people and the surrounding trees.
Hypothesis: The sun outlines four or more people in a park.
Update: The people are standing on sand.

weakener