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: A man wearing all black plays a coffee-burst bass guitar with a band.
Hypothesis: A man is playing with his band in a garage.
Update: There are many onlookers seated in the audience.
weakener

Premise: A lady pushes a stroller, behind a child, riding a tricycle, while another child walks along side.
Hypothesis: A lady is pushing a stroller with a baby inside
Update: As a squirrel runs up a tree, barking is heard from inside the stroller.
weakener

Premise: A businessman sits in front of a computer with is head down and his fingers on the bridge of his nose.
Hypothesis: A businessman is stressed out at work.
Update: His new glasses are bothering him.

weakener