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: People wait in chairs, one person has their shoe off.
Hypothesis: THe people are waiting to be called for their flight.
Update: They are at the doctor's office.

Ex Output:
weakener


Ex Input:
Premise: Military men dressed in camouflage and white aim there weapons while out in the snowy weather.
Hypothesis: men have weapons
Update: They are looking in one direction and reaching for something at their sides.

Ex Output:
strengthener


Ex Input:
Premise: A person holding poles is standing on a rock ledge with bushes on each side overlooking mountains.
Hypothesis: The person is standing on the ledge while it's sunny.
Update: The person loves mountain climbing.

Ex Output:

strengthener