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 young woman and a young man sitting in the grass
Hypothesis: They are a couple
Update: The woman and the man maintain a distance between them and never touch.
[A]: weakener


[Q]: 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.
[A]: strengthener


[Q]: Premise: A man climbing an icy glacier with the assistance of a pick.
Hypothesis: There is a man in a dark blue parka climbing an icy glacier.
Update: The man's lucky parka is red.
[A]:
weakener