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.

[Q]: Premise: A boy doing a trick in the air on his bicycle
Hypothesis: A boy doing a trick is laughing.
Update: The boy is straight-faced.
[A]: weakener


[Q]: Premise: A female doctor is talking to an elderly patient having tests run.
Hypothesis: A female doctor is running blood tests on the patient.
Update: The doctor is making sure the patient has no metal on them
[A]: weakener


[Q]: Premise: A man in a band is singing while wearing a very loud shirt.
Hypothesis: A man is performing karaoke.
Update: He is grateful for the words written across the screen because he has forgotten them.
[A]:
strengthener