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: Many people sitting at the bar with drinks in front of them.
Hypothesis: Two couples have drinks at the bar together.
Update: All of the people are men.

Ex Output:
weakener


Ex Input:
Premise: A man dressed in black playing the trumpet.
Hypothesis: There is a man playing trumpet in a concert.
Update: The man is walking down the street.

Ex Output:
weakener


Ex Input:
Premise: a man and a woman are sitting on a couch playing a video game
Hypothesis: A couple is sitting on a leather couch.
Update: The couch is shiny and brown.

Ex Output:

strengthener