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 young girl sitting at a table with a bowl on her head
Hypothesis: A toddler dumped her bowl of spaghetti on her head
Update: She is covered in noodles and meatballs.
Example Output: strengthener

Example Input: Premise: A young man goes air-born while his skateboard spins underneath him.
Hypothesis: The man is not wearing a helmet.
Update: His hair is flying in front of his face.
Example Output: strengthener

Example Input: Premise: A young boy smiling as he rides down an inflatable water slide.
Hypothesis: A kid shows excitement during a trip to the water park.
Update: There is a house behind the water slide
Example Output:
weakener