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.

Ex Input:
Premise: A young girl gliding on a rope swing beside a red barn.
Hypothesis: The girl is swinging alone.
Update: The girl is calling out someone's name

Ex Output:
weakener


Ex Input:
Premise: Two men are climbing up a steep rock face with moss growing out of it.
Hypothesis: Two men are climbing up a steep rock face to meet someone.
Update: They are leading the way in a rock climbing competition.

Ex Output:
weakener


Ex Input:
Premise: A group of Asian people, all wearing pink shirts, are walking and waving while carrying flags.
Hypothesis: Some of the people wave different colored flags.
Update: All the students are from the same region.

Ex Output:

weakener