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.

Example Input: Premise: A small child sleeping in a bed with a stuffed animal.
Hypothesis: A small child is sleeping with a stuffed bear.
Update: the child holds the duck shape toy
Example Output: weakener

Example Input: Premise: A man and woman sit in a restaurant holding books, the woman reading hers and the man looking at the woman.
Hypothesis: A couple read their favorite books, as the food they have ordered is on its way.
Update: They are employees at the restaurant.
Example Output: strengthener

Example Input: Premise: Two children are hanging out by some lockers.
Hypothesis: kids just lost their game
Update: The two children are holding bats and baseball gloves and are hanging their heads.
Example Output:
strengthener