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 team prepares to play football.
Hypothesis: A team is running laps to warm up to play ball.
Update: The team is on a track.
[A]: strengthener


[Q]: Premise: Two girls are standing behind another girl.
Hypothesis: Two girls are preparing to push a third girl.
Update: the third girl is on the top stair
[A]: weakener


[Q]: Premise: A few men are shown flipping in the air, upside down, as a result of using a contraption that is on their legs.
Hypothesis: The men are performing stunts for an audience.
Update: The people are looking at the men intently.
[A]:
strengthener