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 woman is sitting on a chair outdoors with a microphone near her mouth and an instrument on her lap.
Hypothesis: A woman sings into a microphone.
Update: She begins to hum and play her instrument.

Ex Output:
strengthener


Ex Input:
Premise: Two men playing stringed instruments.
Hypothesis: Two guys are preparing for a concert.
Update: They sit in front of their cases in a local park.

Ex Output:
weakener


Ex Input:
Premise: One black and white dog sleeps while the other two black and white dogs play with a plastic bag.
Hypothesis: One dog is dreaming while the other two are playing and waiting for people to adopt them.
Update: they are in a living room with their owners

Ex Output:

weakener