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: Three people are canoeing down a rough body of water.
Hypothesis: The people are in canoes where they shouldn't be.
Update: The people in the canoes are following the mapped plan.

Ex Output:
weakener


Ex Input:
Premise: A man is standing on a small floating raft with a flag.
Hypothesis: The man is a survivor of a shipwreck.
Update: He has supplies with him

Ex Output:
strengthener


Ex Input:
Premise: A skier coming over a snowy hill while people look on.
Hypothesis: The skier has a number outside his clothing in his or her chest area.
Update: The skier doesn't have a bib on that would hold a number.

Ex Output:

weakener