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: A person is riding a red motorcycle around a track.
Hypothesis: people are racing dirt bikes
Update: The person is being filmed by news cameras
[EX A]: strengthener

[EX Q]: Premise: A young boy wearing goggles, a vest, and arm floaties is swimming in a pool.
Hypothesis: A boy is learning to swim.
Update: The boy is accompanied by an instructor.
[EX A]: strengthener

[EX Q]: Premise: A young girl is drawing a hopscotch game on the side of a road while other children are watching.
Hypothesis: A young girl is preparing to play hopscotch with her best friends.
Update: The girl and the others are wearing friendship bracelets
[EX A]:
strengthener