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 skydiver in a yellow parachute prepares for landing.
Hypothesis: A skydiver is sweating from nerves.
Update: The skydiver's face and hair are wet.

Output: strengthener


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: Guy wearing sunglasses and blue shirt on skateboard in front of a bright yellow building with palm trees.
Hypothesis: A guy skateboards around with a woman.
Update: The man is talking out loud and trying to impress someone near by.


Output: strengthener