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: Four men, seated inside a plain room on benches and dressed in military fatigues are conversing, one man wears a white YWCA t-shirt.
Hypothesis: Four soldiers have just finished training.
Update: The men are sweaty and muddy

Ex Output:
strengthener


Ex Input:
Premise: a girl in a red jacket playing a guitar at a fair or circus.
Hypothesis: The girl makes her living by playing music.
Update: The girl is on stage with a crowd around her

Ex Output:
strengthener


Ex Input:
Premise: A choir, in spotlight, standing in a semi-circle, being lead by a conductor, who is in shadow in front of the choir, and wearing a gray and black striped shirt and black pants
Hypothesis: An a capella group is getting ready to perform in front of a massive audience.
Update: There are no empty seats in the huge cathedral.

Ex Output:

strengthener