With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: 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. a man does a crazy trick for others
text_B: The children laugh at the cartoon characters.
weakener.