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 brown dog running along a dirt road.
Hypothesis: A brown dog is outside
Update: The dog was amoungst the horses in a large trailer.

Ex Output:
weakener


Ex Input:
Premise: A man is helping another man after a fall on the street.
Hypothesis: The man is his brother.
Update: The men look almost identical to each other.

Ex Output:
strengthener


Ex Input:
Premise: Pedestrians on the sidewalk on a block corner where a mural of an eye and Two raises hands has the writings "Stop the Violence" and" We (Heart) a Safe NY".
Hypothesis: People are gathering to protest.
Update: The pedestrians look like foreigners and are taking pictures of the mural.

Ex Output:

weakener