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.

Input: Consider Input: Premise: Large group of people marching for some cause.
Hypothesis: A crowd is protesting.
Update: The crowd have breast cancer fund raising shirts.

Output: weakener


Input: Consider Input: Premise: Three women in headscarves examine a camera.
Hypothesis: The women are looking to buy a camera.
Update: The women have their wallets out

Output: strengthener


Input: Consider Input: Premise: A man is walking across a city street with his son.
Hypothesis: The man is walking across a busy city street.
Update: The street is empty


Output: weakener