text: {"answer": "surfboard", "query": "What is the person holding?", "question_id": 263973007, "contrast_sets": [{"mutex_answer": "boogie board", "mutex_caption": "A man holding up a big white boogie board", "mutex_detection": "boogie board"}, {"mutex_answer": "skateboard", "mutex_caption": "A man holding up a big white skateboard", "mutex_detection": "skateboard"}, {"mutex_answer": "wetsuit", "mutex_caption": "A man holding up a big white wetsuit", "mutex_detection": "wetsuit"}], "caption": "A man holding up a big white surfboard", "image_id": 263973, "detection": "surfboard", "boxes": [[4.31, 33.08, 184.09, 592.54]], "id": 819, "file_name": "COCO_val2014_000000263973.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000263973.jpg", "flickr_url": "http://farm4.staticflickr.com/3059/2500267824_177c8fca2b_z.jpg", "license": 3, "height": 640, "width": 371}