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, that is, it makes you much less likely to believe the hypothesis is true. A strengthener is a statement that strengthens the hypothesis, that is, it makes you much more likely to believe the hypothesis is true. Your task is to answer with 'strengthener' or 'weakener' if the update strengthens or weakens the hypothesis, respectively.

Input: Consider Input: Premise: An Asian man performing on a stage.
Hypothesis: A man singing.
Update: The man performs an opera aria.

Output: strengthener


Input: Consider Input: Premise: An important man with his crew walking on the field at a sporting event.
Hypothesis: The group of workers inspect the damaged field.
Update: One of the workers stops to make a note on his clipboard.

Output: strengthener


Input: Consider Input: Premise: A delighted man is jumping rope in front of a door.
Hypothesis: A man is trying to beat his old jump rope record.
Update: The man is counting how many jumps he has done.


Output: strengthener