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: Fans watching a basketball game indoors at a stadium.
Hypothesis: Fans watching a basketball game championship final indoors at a  local stadium.
Update: The man came in and told them their rental time was up.

SOLUTION: weakener

PROBLEM: Premise: Two young men in a purple and white shirt running on grass.
Hypothesis: Two young men are playing tag.
Update: The men have frisbees.

SOLUTION: weakener

PROBLEM: Premise: A small dog with a soccer ball in its mouth walking on a dirt covered area.
Hypothesis: A toy dog returning a ball in a field.
Update: The pet animal is playing soccer

SOLUTION:
strengthener