text: {"answer": "car", "query": "What is in the background?", "question_id": 99186009, "contrast_sets": [{"mutex_answer": "trees", "mutex_caption": "A stop sign in grassy area with trees.", "mutex_detection": "tree"}, {"mutex_answer": "power lines", "mutex_caption": "A stop sign in grassy area with power lines passing by.", "mutex_detection": "power line"}], "caption": "A stop sign in grassy area with car passing by.", "image_id": 99186, "detection": "car", "boxes": [[0.0, 468.87, 64.2, 96.78]], "id": 669, "file_name": "COCO_val2014_000000099186.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000099186.jpg", "flickr_url": "http://farm9.staticflickr.com/8287/7688366420_209b4ee65a_z.jpg", "license": 4, "height": 640, "width": 480}