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: Five students are reading off a piece of paper.
Hypothesis: the students are practicing for  a test
Update: The paper is a note from another student.

SOLUTION: weakener

PROBLEM: Premise: A boy standing next to a small field fire and a boy running away from it.
Hypothesis: The boy is running from the field fire to get help.
Update: The is waving his hands and yelling.

SOLUTION: strengthener

PROBLEM: Premise: An expensive car is parked in what looks like a car-wash with a man standing at the open passenger door side.
Hypothesis: The man is on his cell phone.
Update: The man is a technophobe.

SOLUTION:
weakener