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: 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 black man wearing round sunglasses, a colorful shirt, and blue jeans sitting on the ground.
Hypothesis: man on coffee break
Update: The man is eating a sandwich.
weakener

Premise: A woman sitting on a bench next to someone wearing a hat and sitting in a wheelchair.
Hypothesis: The woman is taking her mother who is handicapped out to enjoy the air.
Update: The woman is holding the persons hand loving and stroking her long hair.

strengthener