text: {"answer": "grass", "query": "What is behind the zebras?", "question_id": 320632000, "contrast_sets": [{"mutex_answer": "wheat", "mutex_caption": "A herd of zebra standing next to each other on a wheat field."}, {"mutex_answer": "vegetation", "mutex_caption": "A herd of zebra standing next to each other on a green vegetation field."}, {"mutex_answer": "hay", "mutex_caption": "A herd of zebra standing next to each other on a hay field."}], "caption": "A herd of zebra standing next to each other on a green grass field.", "image_id": 320632, "id": 1120, "file_name": "COCO_val2014_000000320632.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000320632.jpg", "flickr_url": "http://farm4.staticflickr.com/3729/8892244724_b080d12e4c_z.jpg", "license": 5, "height": 480, "width": 640}