With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: There are five young boys on a stage wearing boy scout shirts, and one wearing a purple jacket. There are five young boys on a stage wearing Boy Scout shirts, with Webelo neckerchiefs, and one wearing a purple jacket.
text_B: The local chapter of Webelos recently won an award for high enrollment.
strengthener.