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 crosses paths
Hypothesis: As a result, PersonX feels determind
Update: PersonX cowers in fear from their bully.

Output: weakener


Input: Consider Input: Premise: PersonX purchases a new one
Hypothesis: As a result, PersonX wants to take care of it
Update: PersonX put a protective case on it.


Output: strengthener