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 man preparing his net for fishing.
Hypothesis: A young man fixes holes in a net before fishing for bait fish.
Update: The man's face is wrinkled.

Ex Output:
weakener


Ex Input:
Premise: Boys play cricket on a field.
Hypothesis: Small boys play a game.
Update: The boys just left their high school graduation.

Ex Output:
weakener


Ex Input:
Premise: Young girl wearing gray and pink sweater and leather boots shields her face from the camera.
Hypothesis: a girl doesnt want her boyfriend to know she was out
Update: He has to work and she doesn't want him to feel bad.

Ex Output:

strengthener