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 gives tom
Hypothesis: Before, PersonX needed to have something to give
Update: X passes along his knowledge.

Output: strengthener


Input: Consider Input: Premise: PersonX prom with PersonY
Hypothesis: Because PersonX wanted healthy
Update: PersonX is planning to commit suicide

Output: weakener


Input: Consider Input: Premise: PersonX answers the door
Hypothesis: Before, PersonX needed to peep through the peephole
Update: PersonX heard a voice they were familiar with


Output: weakener