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: The girl with green hair and a green glove is swinging a hula hoop.
Hypothesis: A girl swinging a pink hula hoop.
Update: The hulahoop blends in with nearby flamingos.
Example Output: strengthener

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: Men, women and children dance at a party.
Hypothesis: Men, women and children are dancing at a party with streamers on the ceiling.
Update: The parents reserved to park for the birthday party two weeks ago.
Example Output:
weakener