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.

Input: Consider Input: Premise: Men and women outside holding hands to form circles.
Hypothesis: Some people are holding hands and singing.
Update: A banner behind them reads 'Meditation class'

Output: weakener


Input: Consider Input: Premise: A woman wearing a red hat and face paint smiles at another woman.
Hypothesis: A woman wearing clown face paint smiles.
Update: The woman is making balloon animals.

Output: strengthener


Input: Consider Input: Premise: Two boys are looking upwards with their arms streteched to the sky, the boy on the left is wearing a blue vest jacket with a gray long-sleeved shirt and black jogging pants, and black tennis shoes and a hat, and the boy on the right is wearing a silver vest jacket, with blue long-sleeved undershirt, gray pants, and black tennis shoes and has black short hair and glasses.
Hypothesis: Children are playing outside.
Update: One child has grass stains on their pants.


Output: strengthener