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.

Input: Consider Input: Premise: PersonX sees wood
Hypothesis: PersonX is seen as happy
Update: X hates the out of doors.

Output: weakener


Input: Consider Input: Premise: PersonX reduces PersonX's stress
Hypothesis: Because PersonX wanted to be calm
Update: PersonX is reading books on meditation

Output: strengthener


Input: Consider Input: Premise: PersonX meets PersonY at the door
Hypothesis: As a result, PersonX feels social
Update: PersonY is their best friend


Output: strengthener