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: An African American man smiling.
Hypothesis: The man is showing his teeth to a doctor.
Update: The man is knocking on a door
[A]: weakener


[Q]: Premise: The lady with the red-hair, blue, orange, and maroon jacket is getting photographed by a woman wearing a blue sweater in front of a clothing store, judging by that mannequin.
Hypothesis: woman is modeling
Update: The woman is talking on the phone.
[A]: weakener


[Q]: Premise: A man rides on his bike with one hand and holds a drink with the other.
Hypothesis: the man is a stunt man
Update: The cyclist has a number pinned to his shirt.
[A]:
weakener