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 brown dog chases a blond one in the grass.
Hypothesis: A person watches a one dog chase another.
Update: The blonde dog ran toward the pet door leading into the kitchen.

SOLUTION: weakener

PROBLEM: Premise: two guys sitting on the floor, with the guy in the green jacket reading a piece of paper.
Hypothesis: The piece of paper is an eviction notice for the couple.
Update: Both the men look sad.

SOLUTION: strengthener

PROBLEM: Premise: Peoples crowd into a busy public transportation stop as they wait for their ride.
Hypothesis: The people are talking on their phones.
Update: The stop is next to the financial center.

SOLUTION:
strengthener