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 knows PersonX's value
Hypothesis: PersonX is seen as happy
Update: PersonX smiles joyously
Example Output: strengthener

Example Input: Premise: PersonX spends the next few weeks
Hypothesis: PersonX then finishes up after the few weeks
Update: PersonX clears their calendar for the next few months.
Example Output: strengthener

Example Input: Premise: PersonX goes on a date with PersonY
Hypothesis: Because PersonX wanted to enjoy
Update: PersonY owes them money
Example Output:
weakener