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.

Ex Input:
Premise: Runner 3618 is racing down the street.
Hypothesis: The runner is sweaty.
Update: The runner is dripping with sweat despite only being halfway through the race.

Ex Output:
strengthener


Ex Input:
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.

Ex Output:
weakener


Ex Input:
Premise: A man is driving a white van sprayed painted with graffiti.
Hypothesis: A man is driving away from some cops.
Update: The van is playing ice cream truck music.

Ex Output:

weakener