text: {"answer": "yellow", "query": "What color is the train?", "question_id": 460049002, "contrast_sets": [{"mutex_answer": "blue", "mutex_caption": "a blue train going around a curve past some trees "}, {"mutex_answer": "black", "mutex_caption": "a black train going around a curve past some trees "}, {"mutex_answer": "yellow and gray", "mutex_caption": "a yellow and gray train going around a curve past some trees "}, {"mutex_answer": "white", "mutex_caption": "a white train going around a curve past some trees "}], "caption": "a yellow train going around a curve past some trees ", "image_id": 460049, "id": 681, "file_name": "COCO_val2014_000000460049.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000460049.jpg", "flickr_url": "http://farm4.staticflickr.com/3814/9899519074_5e0f154c2f_z.jpg", "license": 4, "height": 359, "width": 640}