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: An aged Asian man smiles for the camera, dressed for work.
Hypothesis: A man wearing a suit and tie walked by and said hello.
Update: The Asian man is a manager.

Ex Output:
strengthener


Ex Input:
Premise: This is a painting of a group of people playing string instruments in a old building with many shiny glowing chandeliers.
Hypothesis: The painting shows the group of people in a very positive image.
Update: In the painting some of the people are frowning.

Ex Output:
weakener


Ex Input:
Premise: A large red vehicle with a blue stripe low on the body of the vehicle.
Hypothesis: A large red vehicle with blue stripe low on it's body next to another outside.
Update: The other vehicle limits the view of the large red vehicle.

Ex Output:

strengthener