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 keeps score
Hypothesis: As a result, PersonX wants announce the winner
Update: PersonX is mute
Example Output: weakener

Example Input: Premise: PersonX tips PersonY
Hypothesis: PersonX then now has less money
Update: PersonX believes you spend money and then make more.
Example Output:
strengthener