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: Four adults eat while sitting on a tile floor.
Hypothesis: Two couples eat food on a kitchen floor.
Update: The people are on a double date.

Answer: strengthener


Question: Premise: Man with no shirt and woman wearing all black are running in the sand.
Hypothesis: The people are at the beach.
Update: They are running to a cactus.

Answer: weakener


Question: Premise: A man dressed in a hat and blue coat rides his bicycle past an outdoor gao quy stand on a sunny day.
Hypothesis: A man waves to the Asian woman behind the gao quy stand as he rides by.
Update: The man's hands are preoccupied with his bike.

Answer:
weakener