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 woman is looking out the window.
Hypothesis: The woman is enjoying the view outside.
Update: The window looks out onto a flower-filled meadow.

Ex Output:
strengthener


Ex Input:
Premise: A girl looks at a fountain that sprays water.
Hypothesis: A girl is throwing coins in the water fountain
Update: The girl is in a school hall way.

Ex Output:
weakener


Ex Input:
Premise: A child in a ninja outfit does a jumping kick.
Hypothesis: a child in a black ninja suit does a kick
Update: The child is several inches off the ground as he does a kick.

Ex Output:

strengthener