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 crowded sidewalk in the inner city of an Asian country.
Hypothesis: They are in Shanghai.
Update: the inner city is sprawling with an enormous developed skyline
[A]: strengthener


[Q]: Premise: Men and women outside holding hands to form circles.
Hypothesis: Some people are holding hands and singing.
Update: A banner behind them reads 'Meditation class'
[A]: weakener


[Q]: Premise: Three naked little boys are playing in a river and are covered in mud; one is standing up.
Hypothesis: the boys had no clothes on in the river in june
Update: The boys needed no clothes in the river on the first summer month of the season.
[A]:
strengthener