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 makes it safely
Hypothesis: PersonX then sighs a relief
Update: They still have a long way to go
Example Output: weakener

Example Input: Premise: PersonX washes PersonY feet
Hypothesis: Because PersonX wanted to get in clean
Update: PersonX smells bad.
Example Output: weakener

Example Input: Premise: PersonX reaches around PersonY
Hypothesis: As a result, PersonX wants to say excuse me
Update: PersonX backs away quickly.
Example Output:
strengthener