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 hiker walks on rocky ground at the base of a foggy mountain.
Hypothesis: The hiker is looking for a ledge to climb.
Update: He just came from the top of the mountain.
answer:
weakener


question:
Premise: A white-haired older man in a green striped shirt is conducting in the social sciences building.
Hypothesis: A white-haired older man in a green striped shirt and black pants is conducting in the social sciences building.
Update: The man is dressed in semi-formal clothing.
answer:
strengthener


question:
Premise: A very large man in a jacket and woolen cap is talking on his cellphone while other pedestrians walk by him.
Hypothesis: The large man weighs over 300 pounds.
Update: The jacket is large and puffy.
answer:

weakener


