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: man in yellow shirt with USA on it sits on chair next to door
Hypothesis: A man near the door is waiting for a friend.
Update: The man is watching the door for hoodlums.
Example Output: weakener

Example Input: Premise: Several people standing in the street.
Hypothesis: people were waiting for the light to change so they could cross
Update: The police officer was holding them up with his hand.
Example Output: strengthener

Example Input: Premise: Baby wearing blue Asian garment, grabbing fruit from a bowl.
Hypothesis: A baby wearing blue garment , grabbed fruit from a bowl, while watching  by her mother.
Update: The mother is sitting in the same room.
Example Output:
strengthener