You will be given a definition of a task first, then an example. Follow the example to solve a new instance of the task.
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.

Premise: Old man crafting something in his workshop.
Hypothesis: An old man is working.
Update: The man is serious and is surrounded by workers.
Solution: strengthener
Why? If the old man is serious and surrounded by workers, it is more likely that he is working.

New input: Premise: A woman in a blue jacket talks on the phone a the boardwalk.
Hypothesis: lady is calling the cops because she lost her child on the boardwalk
Update: The woman is laughing and smiling.
Solution:
weakener