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 cubby cheeked baby in a yellow and red bib playing with a toy.
Hypothesis: The baby loves playing with toys.
Update: The baby only has one toy.

Output: weakener


Input: Consider Input: Premise: Cheerleaders are performing on a football field.
Hypothesis: Cheerleaders are performing on AstroTurf.
Update: Two of the cheerleaders have rug burns on their knees from the AstroTurf.

Output: strengthener


Input: Consider Input: Premise: People in blue t-shirts stand in the grass.
Hypothesis: People in blue t-shirts stand around talking about their lives.
Update: They are looking at pictures of one another's vacations on their smartphones.


Output: strengthener