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 in a blue shirt is pushing another man in a white shirt during football practice.
Hypothesis: The offensive man is blocking the defense.
Update: The offensive man is blocking the exit from the football field.

SOLUTION: weakener

PROBLEM: Premise: A male taking a nap on a hot afternoon.
Hypothesis: A big human taking a nap.
Update: The man is on a bed that is buckling due to his weight.

SOLUTION: strengthener

PROBLEM: Premise: A boy on a bicycle with a shovel and a woman with a laundry basket wait beside the road.
Hypothesis: A boy and a woman hope to catch a ride into town.
Update: They're waiting at a bus stop.

SOLUTION:
strengthener