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 gets PersonX's test
Hypothesis: PersonX is seen as nervous
Update: PersonX's heart is racing fast.
Example Output: strengthener

Example Input: Premise: PersonX talks out of turn
Hypothesis: PersonX is seen as assertive
Update: PersonX is trying to be the leader of the project
Example Output: strengthener

Example Input: Premise: PersonX agrees and went
Hypothesis: PersonX then gets called
Update: PersonX did a really bad job.
Example Output:
strengthener