text: {"answer": "fence", "query": "What is the enclosure above the person's head?", "question_id": 580972003, "contrast_sets": [{"mutex_answer": "barrier", "mutex_caption": "Skateboarder grinding a ledge in a barriered area."}, {"mutex_answer": "bridge", "mutex_caption": "Skateboarder grinding a ledge near a bridge."}, {"mutex_answer": "tunnel", "mutex_caption": "Skateboarder grinding a ledge near a tunnel."}, {"mutex_answer": "concrete", "mutex_caption": "Skateboarder grinding a ledge in a concrete area."}], "caption": "Skateboarder grinding a ledge in an en-fenced area.", "image_id": 580972, "id": 348, "file_name": "COCO_val2014_000000580972.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000580972.jpg", "flickr_url": "http://farm9.staticflickr.com/8122/8647240704_bb1f4a0604_z.jpg", "license": 1, "height": 640, "width": 425}