text: {"answer": "marble", "query": "What material is the walls made of?", "question_id": 482007000, "contrast_sets": [{"mutex_answer": "cement", "mutex_caption": "Trees sitting in vases next to a cement wall."}, {"mutex_answer": "plaster", "mutex_caption": "Trees sitting in vases next to a plaster wall."}, {"mutex_answer": "metal", "mutex_caption": "Trees sitting in vases next to a metal wall."}, {"mutex_answer": "wood", "mutex_caption": "Trees sitting in vases next to a wood wall."}, {"mutex_answer": "glass", "mutex_caption": "Trees sitting in vases next to a glass wall."}], "caption": "Trees sitting in vases next to a marble wall.", "image_id": 482007, "id": 833, "file_name": "COCO_val2014_000000482007.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000482007.jpg", "flickr_url": "http://farm1.staticflickr.com/112/297124384_9c86056d29_z.jpg", "license": 3, "height": 433, "width": 640}