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: A barefoot young boy glances at the camera while swinging in a park.
Hypothesis: Billy loves to swing high while his Dad pushes him.
Update: The boy's face is covered in tears.

Answer: weakener


Question: Premise: A man hang glides over the countryside.
Hypothesis: This man has taken hang gliding lessons before.
Update: The man accompanied by a trainer because he is very nervous.

Answer:
weakener