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 biker is racing downhill.
Hypothesis: driving competetion is going on
Update: Police officers on bikes are chasing the person

Answer: weakener


Question: Premise: A man with green glasses does a trick on his skateboard.
Hypothesis: A man is good on his skateboard.
Update: He is holding the skateboard with his feet.

Answer: strengthener


Question: Premise: Someone is holding a naked baby that is laughing.
Hypothesis: A mother is holding her laughing baby before she gives him a bath.
Update: The nurses are amazed to hear a still wet newborn laugh.

Answer:
weakener