text: {"answer": "stop", "query": "What does the sign in the center mean?", "question_id": 417606007, "contrast_sets": [{"mutex_answer": "street name", "mutex_caption": "A street sign in the middle of two streets."}], "caption": "A stop sign in the middle of two streets.", "image_id": 417606, "id": 861, "file_name": "COCO_val2014_000000417606.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000417606.jpg", "flickr_url": "http://farm4.staticflickr.com/3150/2677291219_d57cb3be59_z.jpg", "license": 1, "height": 640, "width": 399}