With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A man with a black baseball cap, blue shorts, gloves and no shirt is standing atop a roof. A man is surveying land before he starts jogging
text_B: A man is surveying land before he starts jogging so he can plan the most pleasurable route with the least traffic that will give him the best workout.
strengthener.