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: Girl wearing a hat and holding her bike talks to her friend.
Hypothesis: Girl holding her bike is talking to her friend with black hair.
Update: The girl's hair is dark.

SOLUTION: strengthener

PROBLEM: Premise: A young child with brown curly hair and brown eyes sits in a foldaway chair on the sidewalk.
Hypothesis: A young child sits in a chair on the sidewalk as the parade passes by.
Update: The child greets the mailwoman.

SOLUTION: weakener

PROBLEM: Premise: The fireman is carrying a flashlight in his left hand and a pic in his right hand while focusing on something.
Hypothesis: A man is seeking something.
Update: The flashlight is not turned on.

SOLUTION:
weakener