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: Two dogs on leashes straining toward each other while their owners walk away from each other.
Hypothesis: The dogs hate eachother.
Update: The two male dogs are very aggressive towards each other.

Ex Output:
strengthener


Ex Input:
Premise: Soccer player in blue is wiping his mouth with his shirt.
Hypothesis: There is a player taking a break.
Update: He wipes his face as he runs.

Ex Output:
weakener


Ex Input:
Premise: Three cyclists in red are racing with several people in the background spectating.
Hypothesis: Three cyclists compete for first place.
Update: There is a race being held on that street.

Ex Output:

strengthener