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 beige shirt is operating a video camera next to a girl in a black sweater.
Hypothesis: The video camera is pointed at the girl.
Update: Two trapeze artists are putting on a show.

SOLUTION: weakener

PROBLEM: Premise: Two men playing ultimate Frisbee.
Hypothesis: Two guys are playing with a yellow Frisbee.
Update: The frisbee matches some tulips under a tree.

SOLUTION: strengthener

PROBLEM: Premise: A man is looking out of a bus window.
Hypothesis: the man is a traveller
Update: The man is traveling across three states to visit his ailing mother.

SOLUTION:
strengthener