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: Two women stand in the foreground making foolish faces in front of a diverse crowd of young people.
Hypothesis: Two teachers are making funny faces at their students.
Update: The people are in a classroom.

Ex Output:
strengthener


Ex Input:
Premise: A yellow car is creating smoke by spinning its tires.
Hypothesis: A car is being driven dangerously in the street.
Update: The driver doesn't realize he left the parking brake on before exiting the lot.

Ex Output:
weakener


Ex Input:
Premise: Three men standing outside in suits are talking and laughing.
Hypothesis: Three suited men tell jokes outside.
Update: The three men walk to the bar next door.

Ex Output:

strengthener