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: Someone in an orange vest sits with a blue and yellow device in his hand.
Hypothesis: This man is a construction worker.
Update: The man is sitting on a runway of an airport
weakener

Premise: Woman is making a half smile at the camera.
Hypothesis: woman takes selfie
Update: The camera is on the woman's phone.
strengthener

Premise: A group of people walking in a large market with a yellow moped left alone at the front of the street.
Hypothesis: A group of people shopping for food at the market.
Update: Everyone in the group has a basket with groceries in it.

strengthener