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 person is writing on a chalkboard in a empty classroom.
Hypothesis: A man is doing math on a chalkboard.
Update: the person is a talented drawer.

Answer: weakener


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: Kids play on rocks lining the coastline of a location with a nearby ferry.
Hypothesis: The ferry is red and white.
Update: The ferry is hard to see at night.

Answer:
weakener