TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: strengthener

PROBLEM: Premise: a young man jumping a back flip off of a concrete wall.
Hypothesis: The flip is high
Update: The wall is 10 feet tall

SOLUTION: strengthener

PROBLEM: Premise: A person with a multicolored hat stands just behind a mosaic featuring Spanish words and in front of a grassy hill.
Hypothesis: A person with a hat stands waiting behind a Spanish mosaic.
Update: The person appears to be bored.

SOLUTION:
strengthener