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 cook puts finishing touches on a plate of food.
Hypothesis: A woman ices her cake
Update: The restaurant does not offer deserts.

Output: weakener


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: A young african boy skipping rocks.
Hypothesis: There is a rock currently skipping down a pond.
Update: There are several expanding sets of rings on the surface of the pool.


Output: strengthener