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: Two kids play hockey in the snow.
Hypothesis: Two kids play hockey in the winter
Update: They are in a mountain resort

Ex Output:
weakener


Ex Input:
Premise: A man in a yellow construction hat with a tool bag on his back, is drilling a wall labeled superior walls.
Hypothesis: A construction worker is building the walls to a house.
Update: The wall has windows in it.

Ex Output:
strengthener


Ex Input:
Premise: The FedEx driver listens to the workman in the green hard hat while the equipment to ship is being loaded.
Hypothesis: A man gives instructions to other workers on how to load the equipment.
Update: The workers gather around the man reading from an instruction sheet.

Ex Output:

strengthener