text: {"answer": "frisbee", "query": "What object is in the dog's mouth?", "question_id": 207509000, "contrast_sets": [{"mutex_answer": "toy", "mutex_caption": "A labrador dog holds a toy in its mouth.", "mutex_detection": "toy"}, {"mutex_answer": "ball", "mutex_caption": "A labrador dog holds a ball in its mouth.", "mutex_detection": "ball"}], "caption": "A labrador dog holds a frisbee in its mouth.", "image_id": 207509, "detection": "frisbee", "boxes": [[161.64, 216.51, 286.35, 193.57]], "id": 505, "file_name": "COCO_val2014_000000207509.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000207509.jpg", "flickr_url": "http://farm8.staticflickr.com/7132/7081871863_9ec182f6f7_z.jpg", "license": 3, "height": 444, "width": 640}