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.
Example: Premise: Old man crafting something in his workshop.
Hypothesis: An old man is working.
Update: The man is serious and is surrounded by workers.
Example solution: strengthener
Example explanation: If the old man is serious and surrounded by workers, it is more likely that he is working.

Problem: Premise: A young girl wearing a yellow soccer jersey is running on a field.
Hypothesis: A girl is running to chase a soccer ball during a game.
Update: The girl in a green jersey is not far from her.

Solution: strengthener