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.

Example Input: Premise: A long-haired young man skateboarding on the rails on a cloudy day.
Hypothesis: The boy is going to do a pop-shove it.
Update: The man is in a hurry to get to his job.
Example Output: weakener

Example Input: Premise: Two women are standing with a young boy in a blue hat, and the one on the left is casually checking her cellphone.
Hypothesis: Woman playing games on cell phone
Update: The woman is playing a football game on her cell phone.
Example Output: strengthener

Example Input: Premise: A group of people inside some form of public transportation (such as a bus), are looking out the windows on the left side.
Hypothesis: people see a crash to the left
Update: A young couple is locked in a passionate embrace.
Example Output:
weakener