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: Cheerleaders perform.
Hypothesis: The Cheerleaders are shaking their pom poms
Update: The cheerleaders did a gymnastics routine.

Output: weakener


Input: Consider Input: Premise: A young girl sits on the edge of a sink.
Hypothesis: a girl poses for her mother
Update: The girl's mother is holding a camera.

Output: strengthener


Input: Consider Input: Premise: A woman is jogging in grass next to a road.
Hypothesis: Woman jogging in a marathon.
Update: The woman is wearing a paper number on her chest.


Output: strengthener