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: A bird's eye view of people walking up and down cement steps, most in silhouette except for two little girls.
Hypothesis: The girls are best friends.
Update: The girls are arguing.

Output: weakener


Input: Consider Input: Premise: A young girl wearing a yellow soccer jersey is running on a field.
Hypothesis: A girl is running to chase a soccer ball during a game.
Update: The field is full of children in street clothes.

Output: weakener


Input: Consider Input: Premise: Men stand by the road, where construction is being done on the corner in a small suburban area.
Hypothesis: A new road is being built
Update: New traffic lights are being put in.


Output: weakener