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. It makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis. It makes you much more likely to believe the hypothesis is true. Your task is to output 'strengthener' or 'weakener' if the update strengths or weakens the hypothesis, respectively.

Example Input: Premise: PersonX goes to the local animal shelter
Hypothesis: Before, PersonX needed to walk in
Update: There in a new drive through feature that makes the shelter popular.
Example Output: weakener

Example Input: Premise: PersonX camps with PersonY's family
Hypothesis: Because PersonX wanted to go camping
Update: X didn't know how to turn down the invitation.
Example Output: weakener

Example Input: Premise: PersonX reaches behind PersonY
Hypothesis: As a result, PersonX wants ask person y why they were hiding it
Update: PersonX tries to pry open the hand of PersonY.
Example Output:
strengthener