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.
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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 kid on a surfboard riding a small wave.
Hypothesis: A kid on a surfboard riding a wave for a competition.
Update: The kid is being cheered on by a large crowd.

Answer: strengthener


Question: Premise: Three people, one tall male in blue polo shirt and khaki shorts with tan shoes, brunette, heavy chested female in white summer blouse and denim shorts, second female wearing yellow rimmed sunglasses, yellow blouse and sandals, walking across a city street.
Hypothesis: The male is wearing a hat.
Update: There's shade over the man's eyes despite it being sunny outside.

Answer:
strengthener