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: Dancers a standing on a sidewalk.
Hypothesis: Some dancers are waiting for the bus.
Update: The dancers are headed on a tour.

Ex Output:
strengthener


Ex Input:
Premise: A man is biting his tongue while throwing some food and attempting to catch it in a frying pan.
Hypothesis: The man is psychotic.
Update: The man is a TV chef known for his unconventional presentation style.

Ex Output:
weakener


Ex Input:
Premise: A girl in an orange shirt lights candles.
Hypothesis: She is helping her mother light candles.
Update: There were a lot of candles on her grandfather's birthday cake.

Ex Output:

strengthener