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: Two men play basketball.
Hypothesis: Two men are competing for the last spot on the basketball team.
Update: Two men are competing to become the final teammate on the basketball team this season.
strengthener

Premise: A child is window shopping for a brown purse.
Hypothesis: A child is shopping to complete their outfit
Update: Tomorrow is her mother's birthday.
weakener

Premise: A teacher pointed out the Library details on the overhead projector screen.
Hypothesis: A teachers is giving a lesson to first-graders.
Update: The teacher shows the details as small children sit at desks listening to her.

strengthener