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 wants anything to do with PersonY
Hypothesis: PersonX is seen as that he needs help
Update: PersonX knows PersonY is struggling.
Example Output: strengthener

Example Input: Premise: PersonX keeps PersonY calm
Hypothesis: PersonX is seen as well spirited
Update: PersonX keeps PersonY calm with high doses of Xanax.
Example Output: weakener

Example Input: Premise: PersonX goes perfectly
Hypothesis: PersonX then got right way
Update: PersonX is trying to turn right on red.
Example Output:
weakener