text: {"answer": "yellow", "query": "What color is the front of the train?", "question_id": 42499000, "contrast_sets": [{"mutex_answer": "green", "mutex_caption": "A green and blue train traveling down train tracks."}, {"mutex_answer": "white", "mutex_caption": "A white and blue train traveling down train tracks."}, {"mutex_answer": "golden", "mutex_caption": "A golden and blue train traveling down train tracks."}, {"mutex_answer": "black", "mutex_caption": "A black and blue train traveling down train tracks."}], "caption": "A yellow and blue train traveling down train tracks.", "image_id": 42499, "id": 879, "file_name": "COCO_val2014_000000042499.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000042499.jpg", "flickr_url": "http://farm9.staticflickr.com/8247/8664782157_37ae9269a4_z.jpg", "license": 3, "height": 480, "width": 640}