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 enjoying a drink at a bar top.
Hypothesis: A man enjoying a drink at a bar top while smoking.
Update: The man is addicted to cigarettes.
strengthener

Premise: An all-female band plays drums and guitar on a stage, in front of a banner reading "Screaming Orphans."
Hypothesis: The band name is "Screaming Orphans"
Update: The band is playing for free for charity.
weakener

Premise: At a rock concert a man dressed in black and white pants and a checked hat plays his red guitar while another man sings.
Hypothesis: The man is a good singer.
Update: People look admiringly at the man as he sings.

strengthener