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: Many people sitting at the bar with drinks in front of them.
Hypothesis: Two couples have drinks at the bar together.
Update: All of the people are men.
Example Output: weakener

Example Input: Premise: An elderly woman sitting in the window of a stone building
Hypothesis: A woman relaxing after a long day of cleaning.
Update: A mop sits nearby in a bucket.
Example Output: strengthener

Example Input: Premise: An person runs at the waters edge at the ocean.
Hypothesis: Someone is running on the beach at sunrise.
Update: The person gets their daily jog each morning this way.
Example Output:
strengthener