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 diver swims past a school of colorful fish.
Hypothesis: The diver is a scientist studying fish.
Update: The diver has a camera and notes.
strengthener

Premise: A man in a striped shirt selling green and yellow melon out of the back of a pick up.
Hypothesis: A farmer wearing his farm's logo shirt is selling fresh fruit throughout the summer harvest season.
Update: It's sunnyoutside.
strengthener

Premise: A man on a bicycle sits at a stoplight with headphones on.
Hypothesis: A man is on an expensive bicycle at a stoplight.
Update: The man is wearing a Gucci shirt.

strengthener