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: A woman in a white shirt is wearing blue goggles while speaking to someone with her hands.
Hypothesis: A woman wearing goggles is yelling and waving her hands at someone.
Update: There is a drowned person in the pool and the woman is waving for people to get back.

SOLUTION: strengthener

PROBLEM: Premise: A woman serving a tennis ball.
Hypothesis: A woman is playing tennis with her husband.
Update: She has a basket of balls to practice with alone.

SOLUTION: weakener

PROBLEM: Premise: At a rock concert a man dressed in black and white pants and a checked hat plays his red guitar while another man sings.
Hypothesis: The man is a good singer.
Update: People are booing the man.

SOLUTION:
weakener