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: Three girls in a marching band are wearing gold outfits and men are drumming behind them.
Hypothesis: Men drumming
Update: People with beards are holding drums and sticks.

SOLUTION: strengthener

PROBLEM: Premise: An icy, snowy city street with a bike resting against a pole.
Hypothesis: The bike is covered in snow.
Update: There are fresh tire track behind the bike.

SOLUTION: weakener

PROBLEM: Premise: A young red-haired woman uses a scope to scout out shooting targets on a gun range.
Hypothesis: The woman is shooting with other people at the range
Update: The woman is surrounded by other people with guns

SOLUTION:
strengthener