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 young boy jumping upside-down into a pool.
Hypothesis: A child playing a game of marco polo.
Update: The boy is trying to show off to the girls.

Ex Output:
weakener


Ex Input:
Premise: A young girl does a handstand on a bed with blue sheets.
Hypothesis: A girl is practicing gymnastics on her bed.
Update: The girl has a headstand video up on YouTube that she is copying

Ex Output:
strengthener


Ex Input:
Premise: Young girl waving turquiose leotard and pink tutu with wings waving wand.
Hypothesis: A young girl is waving a turquiose leotard.
Update: The girl recently received a turquoise leotard as a present.

Ex Output:

strengthener