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: Two people walking by a large stone wall.
Hypothesis: A lesbian couple is walking beside a wall.
Update: The two people are holding hands.
Example Output: strengthener

Example Input: Premise: A child in school, holding a ball as she points a the frisbee.
Hypothesis: A girl is playing with her peers.
Update: The child is talking to somebody
Example Output: strengthener

Example Input: Premise: A shirtless man jumping off an old stone bridge while a woman and children watch him.
Hypothesis: A shirtless man jumping off an old stone bridge into a river while a woman and children watch him
Update: The man is in Egypt
Example Output:
strengthener