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 dances the night away
Hypothesis: PersonX then gets sore
Update: PersonX is very strong.

Output: weakener


Input: Consider Input: Premise: PersonX drags through the mud
Hypothesis: Because PersonX wanted to get his feet dirty
Update: PersonX's feet are bleeding.

Output: weakener


Input: Consider Input: Premise: PersonX gives PersonY shelter
Hypothesis: As a result, PersonX feels sensitive
Update: PersonY has been homeless for some time.


Output: strengthener