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: Several children with orange bracelets hold onto a hose.
Hypothesis: The children are spraying each other with water.
Update: All the children are dripping wet and laughing hysterically.
Example Output: strengthener

Example Input: Premise: Two swimmers competing in swim competition.
Hypothesis: The swim competition is held inside
Update: The swimmers swim under some bright lights on the ceiling.
Example Output: strengthener

Example Input: Premise: A man wearing a helmet, red pants with white stripes going down the sides and a white and red shirt is on a small bicycle using only his hands while his legs are up in the air, while another man wearing a light blue shirt with dark blue trim and black pants with red stripes going up the sides is standing nearby, gesturing toward the first man and holding a small figurine of one of the seven dwarves.
Hypothesis: a man does a crazy trick for others
Update: Two friends are being funny for a video they're making.
Example Output:
weakener