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.

Premise: Four dark-haired girls walk the hall toward a bank of lockers.
Hypothesis: Girls are at the gym.
Update: They are between classes.
weakener

Premise: A young boy in checkered pants places a red shirt in a black tub.
Hypothesis: A little boy puts a red shirt in a black tub for charity while he's wearing checkered pants.
Update: The kid is alone.
strengthener

Premise: A woman at the laundry mat is looking for something in her black leather purse.
Hypothesis: The woman at the laundromat does not have enough change for the machines.
Update: The woman looks worried as she mumble to herself.

strengthener