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 starts to smell
Hypothesis: PersonX then identifies an object
Update: PersonX lost their nose many years ago in a duel.
Example Output: weakener

Example Input: Premise: PersonX goes as well
Hypothesis: Before, PersonX needed be invited to a party
Update: PersonX is prim and proper
Example Output: strengthener

Example Input: Premise: PersonX sits tight
Hypothesis: Before, PersonX needed to have called the police
Update: PersonX called a delivery service
Example Output:
weakener