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: Two people are on top of the bed of a truck.
Hypothesis: Two guys sit in the bed while the car is in motion.
Update: The driver and his helper are unloading wood onto the ground.

Answer: weakener


Question: Premise: Nine women in blue and purple dresses and one man wearing a purple shirt and black pants, clap while a man dressed in black dances.
Hypothesis: There is a group watching a street performance.
Update: The man in black dances underneath a street sign as people watch from the sidewalk.

Answer: strengthener


Question: Premise: A man with black shorts and a red shirt is standing on cobblestones.
Hypothesis: The cobblestones are black and red.
Update: The stones match the man's outfit.

Answer:
strengthener