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.

Input: Consider Input: Premise: Man smokes while sitting on a parked scooter.
Hypothesis: A man smokes a cigarette while sitting on his scooter.
Update: The man smells of tobacco.

Output: strengthener


Input: Consider Input: Premise: A black and brown dog is running out of the surf.
Hypothesis: A dog is swimming excitedly.
Update: The dog swims with great enthusiasm out of the water.

Output: strengthener


Input: Consider Input: Premise: People are dancing around while wearing multiple colored and varied clothing.
Hypothesis: The people are performing a traditional Guatemalan dance as part of their yearly festival.
Update: They are in a mountain village in Austria.


Output: weakener