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 sitting next to her purse watching dogs at the park.
Hypothesis: woman is video taping dogs in the park
Update: The woman has a cellphone in her hands

Ex Output:
strengthener


Ex Input:
Premise: A red brick building with a man and two women near it.
Hypothesis: The people are walking into their place of work.
Update: The people are holding protest signs.

Ex Output:
weakener


Ex Input:
Premise: A street vendor next to a stall of umbrellas and inflatable animals.
Hypothesis: A vendor is selling items to customers at the county fair.
Update: The people walking by are carrying tickets and fried things on sticks.

Ex Output:

weakener