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.

[Q]: Premise: PersonX introduces PersonY
Hypothesis: Before, PersonX needed to know PersonY's name
Update: PersonX is introducing PersonY from memory.
[A]: strengthener


[Q]: Premise: PersonX asks friends
Hypothesis: Because PersonX wanted to help the poor
Update: PersonX is looking for someone to take his place.
[A]: weakener


[Q]: Premise: PersonX holds PersonY's head up
Hypothesis: As a result, PersonX wants to ensure that PersonY is physically allright, and not in need of any further assistance
Update: PersonX is physically strong.
[A]:
strengthener