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 sits with a little boy in the drivers seat of a jeep.
Hypothesis: Man driving with child on lap.
Update: The jeep's wheels are spinning quickly.

SOLUTION: strengthener

PROBLEM: Premise: Eight men work on scaffolding on a cloudless day.
Hypothesis: The eight men love to work on scaffolding when the days are cloudless.
Update: the men are laughing and singing while they work

SOLUTION: strengthener

PROBLEM: Premise: A man is riding a horse while 3 other empty-saddled horses follow.
Hypothesis: A man is teaching his horses how to be horses.
Update: The horses have been domesticated so much that they're not sure how to behave.

SOLUTION:
strengthener