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: The Irish Setter is retrieving a flashlight from the pond.
Hypothesis: A dog is fetching something for its owner.
Update: Behind the dog are a few police cars with their lights on.

Ex Output:
weakener


Ex Input:
Premise: A man in a dark pants lifts his leg while five girls wearing rollerskates gather near him.
Hypothesis: A coach gives advice to his team.
Update: The man is a celebrity

Ex Output:
weakener


Ex Input:
Premise: Two Asian males smile while celebrating a birthday with a layered chocolate cake with a sparkling candle.
Hypothesis: Two asian males a celebrating a birthday because on is turning 40.
Update: Neither of the males has any wrinkles.

Ex Output:

weakener