instruction:
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.
question:
Premise: A group of men wearing cowboy hats are sitting next to a horse.
Hypothesis: A group of men are watching something.
Update: The herd is agitated about something and they try to figure out what it is.
answer:
strengthener


question:
Premise: A bearded man plays an instrument in front of a stone wall.
Hypothesis: The instrument is a tuba.
Update: The instrument is large and made of brass.
answer:
strengthener


question:
Premise: A group of people ride a blue roller coaster on its way down from a turn.
Hypothesis: Some people ride a blue roller coast down from a left turn.
Update: The people's loose change went flying off to the right.
answer:

strengthener