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.

Ex Input:
Premise: A girl looks at a fountain that sprays water.
Hypothesis: A girl is throwing coins in the water fountain
Update: The girl is in a school hall way.

Ex Output:
weakener


Ex Input:
Premise: Two women in exotic red costumes are dancing.
Hypothesis: Two woman are dancing the samba.
Update: The women are Latina

Ex Output:
strengthener


Ex Input:
Premise: A young girl sits on the edge of a sink.
Hypothesis: a girl poses for her mother
Update: Her father is taking too long in the bathroom and she can't wait.

Ex Output:

weakener