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: Two women of Asian descent walk beside a city street busy with cars.
Hypothesis: Two women are carrying grocery bags down the street.
Update: They hurry along, each carrying at least two grocery bags in each hand.
Example Output: strengthener

Example Input: Premise: A man wearing a suit walks next to a building support column with palm trees in the background.
Hypothesis: a man is late for work
Update: He is happy to be on vacation.
Example Output: weakener

Example Input: Premise: Two men are cooking in a kitchen.
Hypothesis: Two guys are preparing dinner for the local food critic.
Update: The kitchen is in a newly opened restaurant.
Example Output:
strengthener