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.

Ex Input:
Premise: PersonX studies extra hard
Hypothesis: PersonX then gains knowledge
Update: PersonX enjoyed the reading.

Ex Output:
strengthener


Ex Input:
Premise: PersonX plays old harry
Hypothesis: As a result, PersonX wants to apologize
Update: PersonX gave old harry a heart attack

Ex Output:
strengthener


Ex Input:
Premise: PersonX does something wrong
Hypothesis: PersonX then frowns
Update: PersonX restarts the game.

Ex Output:
weakener