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: Three people are listening to a lecture.
Hypothesis: Two women, and a man are seated while listening to a lecture.
Update: All three of the people have either a mustache, beard or both.
Example Output: weakener

Example Input: Premise: Two women are posing for a photo with two men dressed in costume.
Hypothesis: It's at a Halloween party
Update: The women are attending a play.
Example Output:
weakener

