With no explanation, label text_A→text_B with either "strengthener" or "weakener".
text_A: Four bicycles indoors: a red one being held by woman in black and a dog in the basket, a black one with saddlebags and a man in a gray shirt holding it, a blue one being ridden by a man in black shorts and a white shirt, and another that is blocked but is held by a person in an orange jacket. Four people have recently bought bicycles at a brick-and-mortar retailer.
text_B: Four people have recently bought bicycles at a brick-and-mortar retailer because they wanted to ride, customize and feel the bikes before paying any money.
strengthener.