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 professional baseball catcher and behind him an umpire are knelt in action position and are awaiting the pitch.
Hypothesis: World Series game 3 is being played
Update: They are in an empty stadium.

SOLUTION: weakener

PROBLEM: Premise: Various people out and about in a public place on an autumn day.
Hypothesis: A group of classmates out and about in public on an autumn day.
Update: There is a school bus parked nearby.

SOLUTION: strengthener

PROBLEM: Premise: Four women and one men sitting on some rocks, a wooden house to the left.
Hypothesis: 5 people chatting around an outdoor patio.
Update: The man plays piano for his for lady friends.

SOLUTION:
strengthener