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 man in a long-sleeved white shirt and light tan shorts is mowing the lawn near a brick wall with small trees along it.
Hypothesis: a man mowes his lawn becuase it was to long
Update: It is impossible to tell what the man has already mowed from what is left to mow.

Ex Output:
weakener


Ex Input:
Premise: Several people are dividing up painting supplies.
Hypothesis: men and women dividing supplies
Update: Some of the people have breasts, and some have beards.

Ex Output:
strengthener


Ex Input:
Premise: One man, wearing his waders in the lake, fly fishing alone.
Hypothesis: One man fly fishing on a lake.
Update: The man is holding a fly fishing pole.

Ex Output:

strengthener