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: A man in an orange vest is working on a train.
Hypothesis: The train will head to Vermont once fixed.
Update: The man is from the midwest.

Output: weakener


Input: Consider Input: Premise: One man is singing into a microphone and another musician is playing the guitar while standing next to each other.
Hypothesis: The man played the guitar very well.
Update: The other members of the band stop playing and let the guitar player take over as the crowd cheers.

Output: strengthener


Input: Consider Input: Premise: Woman and four little girls, near cake with candles.
Hypothesis: There is a smiling woman and four little girls.
Update: She has a tear coming down her the side of her face.


Output: weakener