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.

Ex Input:
Premise: A young man dressed in a t-shirt and shorts is sitting on the ground and holding his boot in his hand and smiling.
Hypothesis: the man is collecting money in his boot
Update: The man has a sign that says "Homeless, please help."

Ex Output:
strengthener


Ex 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.

Ex Output:
strengthener


Ex Input:
Premise: A grandfather playing with his family on a playground.
Hypothesis: There is a 50 year old grandfather playing.
Update: The grandfather plays with his family on his 50th birthday.

Ex Output:

strengthener