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.

Q: Premise: A man in an orange vest is working on a train.
Hypothesis: The train will head to Vermont once fixed.
Update: The man is from the midwest.

A: weakener
****
Q: Premise: A man working on a job site.
Hypothesis: A man building his house.
Update: The man holds a blueprint of a 20 story building.

A: weakener
****
Q: Premise: Two men getting a document signed
Hypothesis: The men are signing a business contract.
Update: TThe document says that their two companies will merge.

A:
strengthener
****