text: {"answer": "blue", "query": "What color is the train?", "question_id": 357331003, "contrast_sets": [{"mutex_answer": "green", "mutex_caption": "a green train driving on a train track below multiple power lines."}, {"mutex_answer": "white", "mutex_caption": "a white train driving on a train track below multiple power lines."}, {"mutex_answer": "silver", "mutex_caption": "a silver train driving on a train track below multiple power lines."}, {"mutex_answer": "purple", "mutex_caption": "a purple train driving on a train track below multiple power lines."}, {"mutex_answer": "gray", "mutex_caption": "a gray train driving on a train track below multiple power lines."}], "caption": "a blue train driving on a train track below multiple power lines.", "image_id": 357331, "id": 440, "file_name": "COCO_val2014_000000357331.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000357331.jpg", "flickr_url": "http://farm6.staticflickr.com/5534/9572965855_17c1b79638_z.jpg", "license": 3, "height": 360, "width": 640}