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 pets the cat
Hypothesis: Before, PersonX needed hold the cat
Update: The cat is very shaky

Output: strengthener


Input: Consider Input: Premise: PersonX never found it
Hypothesis: As a result, PersonX wants to ask for others help
Update: PersonX is approaching a group of friends.

Output: strengthener


Input: Consider Input: Premise: PersonX goes and play
Hypothesis: As a result, PersonX feels brave
Update: PersonX plays against the best player.


Output: strengthener