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.

Premise: A boy jumping over another boy on a trampoline.
Hypothesis: The two boys are related.
Update: The boys are of different races.
weakener

Premise: Three people are listening to a lecture.
Hypothesis: Two women, and a man are seated while listening to a lecture.
Update: All three of the people have either a mustache, beard or both.
weakener

Premise: A man does work on a stone part of a building.
Hypothesis: He is repairing the building.
Update: The man is a painter.

weakener