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 man on a scaffold paints a wall with a paint roller.
Hypothesis: A man is painting a picture.
Update: He looks thoughtfully at his work then reaches for another roller in a tray with a different color of paint.

Answer: strengthener


Question: Premise: Woman and young lady sit on the sidewalk while young man plays flute in background.
Hypothesis: The man is secretly a Russian spy watching the womens' every move.
Update: He surreptitiously snaps a photo.

Answer: strengthener


Question: Premise: Woman running down a center white line holding a javelin.
Hypothesis: An athlete competing at the Olympics.
Update: There are cameras recording her.

Answer:
strengthener