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.

Example Input: Premise: A woman straddling a wall, while reading a book.
Hypothesis: The woman takes a break from building a wall.
Update: The woman is dressed for church.
Example Output: weakener

Example Input: Premise: A cart of large water containers is in front of two women who are standing as well as two women who are walking down the street.
Hypothesis: The cart of water is for children.
Update: Only older people and adults can be seen anywhere.
Example Output: weakener

Example Input: Premise: A young male is doing a bike trick on a bridge in the evening.
Hypothesis: A young male practicing his bike tricks for the competition.
Update: The man is wearing a uniform.
Example Output:
strengthener