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 group of children that are either sitting or standing in a line, while two are holding a round object.
Hypothesis: the children play a game
Update: the children are on a field trip

Ex Output:
weakener


Ex Input:
Premise: Several men helping each other pull in a fishing net.
Hypothesis: The men are fishing.
Update: There is an old tire in the net.

Ex Output:
weakener


Ex Input:
Premise: A man is mowing the lawn with a red lawn mower.
Hypothesis: A man rides his mower to cut grass.
Update: There are kids playing on the sidewalk in front of his house.

Ex Output:

strengthener