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.

Example 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.
Example Output: weakener

Example Input: Premise: A small group of people are in a small red boat and it is in the air over the ocean.
Hypothesis: The people in the boat are being rescued.
Update: The people haven't eaten for five days.
Example Output: strengthener

Example Input: Premise: A person's image performing a yoga pose while looking at the sunset over the water.
Hypothesis: The person is a woman.
Update: The person appears to be pregnant.
Example Output:
strengthener

