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 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 makes PersonY inventory
Hypothesis: PersonX then gets yelled at
Update: PersonY says they messed it up
Example Output: strengthener

Example Input: Premise: PersonX covers PersonX's nakedness
Hypothesis: Before, PersonX needed be naked
Update: PersonX was on the street.
Example Output:
weakener