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: A boy standing next to a small field fire and a boy running away from it.
Hypothesis: The boy is running from the field fire to get help.
Update: The is waving his hands and yelling.

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 man in a suit is sitting outdoors and is using his laptop computer.
Hypothesis: The man is reading his email at lunch.
Update: He is biting a sandwich.


Output: strengthener