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 improves PersonX's game
Hypothesis: PersonX then gains points
Update: It is too late in the year for any more competitions.
Example Output: weakener

Example Input: Premise: PersonX calls PersonX's father
Hypothesis: As a result, PersonX wants to ask if their father needs help
Update: PersonX's father left a strange voicemail
Example Output: strengthener

Example Input: Premise: PersonX exercises every day
Hypothesis: PersonX is seen as tired
Update: PersonX does high intensity training.
Example Output:
strengthener