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.

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.
weakener

Premise: A middle eastern guy selling stuff street side.
Hypothesis: an arabian man sells flowers
Update: Bees are flying around the man's stand
strengthener

Premise: Two gentlemen in baseball caps and shirts, work on the engine of an old, rusted VW beetle.
Hypothesis: Two gentleman don't know anything about cars.
Update: The gentlemen keep removing random parts and asking each other what those parts do.

strengthener