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: People hurrying to get to work in a busy city.
Hypothesis: People waiting at a bus stop.
Update: The people wait on the sidewalk as a bus pulls up by them.

SOLUTION: strengthener

PROBLEM: Premise: Older men look out over a balcony.
Hypothesis: Older men are looking at the scenery.
Update: The balcony overlooks a stream and wildlife in the Montana mountains.

SOLUTION: strengthener

PROBLEM: Premise: A family including two women, a man, and a child standing around the open hood of a car, examining the inside.
Hypothesis: The car is having mechanical problems.
Update: The father is showing his children how to check oil.

SOLUTION:
weakener