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 is sweeping a tile floor with a broom.
Hypothesis: The man is sweeping up the floor in his kitchen.
Update: There are toilets in the room.

Ex Output:
weakener


Ex Input:
Premise: A man is kicking another man in the head inside of a red ring while another man watches.
Hypothesis: Tall humans kicking
Update: The men are over 6 feet tall.

Ex Output:
strengthener


Ex Input:
Premise: Two young men are seated in front of a green pool of water.
Hypothesis: The men have been there for hours
Update: The person who dropped them off honks as they drive away.

Ex Output:

weakener