text: {"answer": "brick", "query": "What is the wall made of?", "question_id": 138573000, "contrast_sets": [{"mutex_answer": "tile", "mutex_caption": "a tiled wall with man teddy bears stuck to it"}, {"mutex_answer": "stone", "mutex_caption": "a stone wall with man teddy bears stuck to it"}], "caption": "a brick wall with many teddy bears stuck to it", "image_id": 138573, "id": 1104, "file_name": "COCO_val2014_000000138573.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000138573.jpg", "flickr_url": "http://farm6.staticflickr.com/5458/7428740618_ce126cb0e2_z.jpg", "license": 1, "height": 640, "width": 478}