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: Three street musicians wearing brown coats play the drums and trumpet in front of a store.
Hypothesis: three street musicians are playing jazz in front of a store.
Update: the musicians cover a country song
weakener

Premise: A man standing in a white shirt is conducting a small group of violin players.
Hypothesis: Bob is conducting a small group.
Update: The man's birth certificate says Robert.
strengthener

Premise: A woman is sitting on a concrete bench in front of a loaded bicycle rack.
Hypothesis: The woman forgot the code to her bike lock.
Update: The woman looks puzzled and frustrated as she eyes her bike that is locked to the rack.

strengthener