text: {"answer": "skateboarding", "query": "What is the person doing?", "question_id": 462324000, "contrast_sets": [{"mutex_answer": "rollerblading", "mutex_caption": "A man rides rollerblades down a thin rail.", "mutex_detection": "rollerblade"}], "caption": "A man rides a skateboard down a thin rail.", "image_id": 462324, "detection": "skateboard", "boxes": [[222.4, 301.62, 94.7, 48.16]], "id": 989, "file_name": "COCO_val2014_000000462324.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000462324.jpg", "flickr_url": "http://farm3.staticflickr.com/2482/3918655821_f84efd085b_z.jpg", "license": 2, "height": 427, "width": 640}