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 large crowd standing in front of a very large painting.
Hypothesis: A crowd is looking at a painting.
Update: The crowd is paying attention to a mime that is performing in front of the painting.
Example Output: weakener

Example Input: Premise: Bikers stopped on a road.
Hypothesis: Biker men sitting on bikes conversing.
Update: The bikers are sitting on the road but not even looking at each other.
Example Output: weakener

Example Input: Premise: A large brown and white dog is carrying a stick through a white and snowy area.
Hypothesis: A puppy is playing fetch with a stick.
Update: The dog is going towards a man.
Example Output:
strengthener