instruction:
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.
question:
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.
answer:
weakener


question:
Premise: Young rock wall climbers brave the massive structure with precision and ease.
Hypothesis: The climbers are big.
Update: The climbers are college students.
answer:
strengthener


question:
Premise: A person wearing a lifevest is in the air above water.
Hypothesis: A person is wearing an orange life vest.
Update: The lifevest is bright and easily spotted.
answer:

strengthener