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: Three people play instruments in front of a crowd of people.
Hypothesis: A group of people enjoys listening to a live performance of instrumental music.
Update: The people are holding their ears and complaining.
weakener

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.
strengthener

Premise: Runner 3618 is racing down the street.
Hypothesis: The runner is sweaty.
Update: The runner is dripping with sweat despite only being halfway through the race.

strengthener