{"answers": "C", "options": ["f : please give me that black jackets , i will give $ 40 more .", "f : i want that black coat , this is $ 31 .", "f : i will pay you $ 31 to change the black one , right ?", "f : the black jacket is $ 69 more expensive than the blue one ."], "article": "f : excuse me . i 'd like to change this blue jacket i bought last week , for that black one . m : the blue one is $ 19 and the black , $ 50 .", "id": "train_5083"}