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.

[EX Q]: Premise: Two boys playing on a trampoline.
Hypothesis: Two boys playing chess on a trampoline.
Update: There is a checkered board on top of the trampoline.
[EX A]: strengthener

[EX Q]: Premise: A bright wall painting on the street.
Hypothesis: A mural of a sunset.
Update: An onlooker remarks 'Lovely, reminds me of nights in Daytona'
[EX A]: strengthener

[EX Q]: Premise: A woman holding a black purse is leaning with her elbow on the seat of a bicycle.
Hypothesis: A tall human holding a purse.
Update: The bicycle is custom made for tall people.
[EX A]:
strengthener