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 woman is standing near the water, looks to be throwing something.
Hypothesis: The woman is skipping rocks.
Update: The woman is looking for turtles.

Output: weakener


Input: Consider Input: Premise: A musician is giving a concert to fans.
Hypothesis: they are playing pianos
Update: The musician sits on a stool next to a microphone.

Output: weakener


Input: Consider Input: Premise: Four soccer players, two in blue and red and two in white and black, battle for control of airborne soccer ball.
Hypothesis: The players are kicking each other while attempting to kick the ball.
Update: their legs are entangled


Output: strengthener