TASK DEFINITION: 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.
PROBLEM: Premise: A band playing on stage, with one man on keyboards and the other playing a red guitar.
Hypothesis: A band is playing to a sold out crowd.
Update: The people are screaming encore.

SOLUTION: strengthener

PROBLEM: Premise: Two little girls reading and a baby listening.
Hypothesis: The baby is the girl's sibling.
Update: They are sitting on a living room floor, surrounded by their toys.

SOLUTION: strengthener

PROBLEM: Premise: Two boys are helping clean up leaves at the side of the road.
Hypothesis: They are getting read for someone important to arrive.
Update: The mayor is coming to annouce community programs for children.

SOLUTION:
strengthener