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: 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.
[A]: strengthener


[Q]: Premise: A person in a print jacket is standing in front of a table filled with papers.
Hypothesis: The man in the print jacket is looking at the papers.
Update: The man is standing behind the table asking for people to buy them
[A]: weakener


[Q]: Premise: Two young girls are sitting on a low wall reading a letter.
Hypothesis: The girls are reading a letter from their late father.
Update: They are excited to hear from their big sister, away at camp.
[A]:
weakener