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: Man with children near a bench in a suburban area.
Hypothesis: Tall humans near a bench
Update: The man is eye level with the children.

Ex Output:
weakener


Ex Input:
Premise: An old man is sitting on a stoop while people walk towards him with groceries.
Hypothesis: A man sits enjoying the weather, as shoppers stroll by with groceries.
Update: The old man is wearing a sweater, overcoat, scarf and mittens.

Ex Output:
strengthener


Ex Input:
Premise: A man wearing an orange construction hat wipes his face, while another man in an orange construction hat hoists something up on a chain pulley, while standing in front of some fire.
Hypothesis: Two construction workers are working together at night.
Update: It is 105 degrees outside.

Ex Output:

weakener