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 blond little boy is standing by a fence.
Hypothesis: The boy is waiting for his friends to come over.
Update: he is waving to boys walking towards him.
strengthener

Premise: Two people are on top of the bed of a truck.
Hypothesis: Two guys sit in the bed while the car is in motion.
Update: The driver and his helper are unloading wood onto the ground.
weakener

Premise: A shirtless man with a cross tattoo and a gray hat stands on a scaffolding in front of a yellow building.
Hypothesis: A man is getting paid to work on a building.
Update: There is a crowd gathered below the man begging him not to jump.

weakener