With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: A crowded busy dock with people standing next to a freight car either loading or unloading it.aa. A crowded dock has people on it standing next to a freight car because the car is late for it's next unloading.
text_B: The people were getting impatient waiting to get the shipment in.
strengthener.