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

Output: strengthener


Input: Consider Input: Premise: PersonX goes on a date with PersonY
Hypothesis: As a result, PersonX wants hug each other
Update: PersonX does not like PersonY

Output: weakener


Input: Consider Input: Premise: PersonX plays video games together
Hypothesis: PersonX is seen as accomplished
Update: PersonX has won many tournaments internationally


Output: strengthener