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 man in a yellow construction hat with a tool bag on his back, is drilling a wall labeled superior walls.
Hypothesis: A construction worker is building the walls to a house.
Update: The wall has windows in it.
strengthener

Premise: Young people compete in amateur wrestling.
Hypothesis: One of the young people hurt his leg in the amateur wrestling competition.
Update: One of them is puting ice on their knee.

strengthener