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 men sitting on their living floor.
Hypothesis: Two men play video games in the living room.
Update: They are eating a pizza.

Ex Output:
weakener


Ex Input:
Premise: A man with green glasses does a trick on his skateboard.
Hypothesis: A man is good on his skateboard.
Update: He is holding the skateboard with his feet.

Ex Output:
strengthener


Ex Input:
Premise: A girl in a polka dotted blue jean dress walks barefoot on a balance beam.
Hypothesis: A girl is walking on the beam.
Update: The girl forgot her leotard but the coach made her practice anyway.

Ex Output:

strengthener