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: Man in black takes a nap on a bench in front of a sign reading "Justicia sin Olvido."
Hypothesis: The man in black made a sign.
Update: The man has a marker with him.
[EX A]: strengthener

[EX Q]: Premise: Young women practicing marshal arts in a gym.
Hypothesis: A group of women doing Tai Chi at the gym.
Update: The women are part of a class.
[EX A]: strengthener

[EX Q]: Premise: A man accompanies his grandmother on the bus.
Hypothesis: A young man escorts his grandmother to a ball game.
Update: People on the bus have baseball pennants.
[EX A]:
strengthener