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: People in blue t-shirts stand in the grass.
Hypothesis: People in blue t-shirts stand around talking about their lives.
Update: They are looking at pictures of one another's vacations on their smartphones.
answer:
strengthener


question:
Premise: A man and a woman that is holding flowers smile in the sunlight.
Hypothesis: A couple smile on the bench.
Update: The sound of the ocean can be heard.
answer:
strengthener


question:
Premise: People walking and standing outside of an intersection on a busy street.
Hypothesis: People walking on the sidewalk to the mall.
Update: the people watch the traffic light which changes white with a person walking
answer:

weakener