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 woman with red-hair and a black hat is standing in front of pictures.
Hypothesis: The woman wearing the black hat has red hair.
Update: The woman dyes her hair.

SOLUTION: weakener

PROBLEM: Premise: A group of little girls jumping together in a backyard.
Hypothesis: A group of girls are laughing.
Update: The girls are alone with one another and they are not being told what to do by anyone

SOLUTION: strengthener

PROBLEM: Premise: Two dark-haired men are sailing a fishing boat.
Hypothesis: Two men with dark hair are sailing outside, looking for some bass to catch.
Update: They have bass hats

SOLUTION:
strengthener