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: There are buildings in the background.
Hypothesis: buildings in the background are taking up most of the area
Update: There is a small community of trailer homes.

SOLUTION: weakener

PROBLEM: Premise: A man is performing acrobatics over a group of people kneeling on the ground.
Hypothesis: The acrobat is doing a hard trick.
Update: The acrobat is concentrating very intently.

SOLUTION: strengthener

PROBLEM: Premise: A woman standing with a gray jacket.
Hypothesis: A woman stands still and shrinks into her gray coat, hoping that the passing creep doesn't notice her.
Update: The creep moves on.

SOLUTION:
strengthener