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 man is biting his tongue while throwing some food and attempting to catch it in a frying pan.
Hypothesis: The man is psychotic.
Update: The man is a TV chef known for his unconventional presentation style.

SOLUTION: weakener

PROBLEM: Premise: Four adults eat while sitting on a tile floor.
Hypothesis: Two couples eat food on a kitchen floor.
Update: The people are on a double date.

SOLUTION: strengthener

PROBLEM: Premise: A girl with a backpack runs down the street.
Hypothesis: The backpack is open.
Update: The rain soaks the contents of her backpack.

SOLUTION:
strengthener