text: {"answer": "brick", "query": "What is the wall made of?", "question_id": 156466002, "contrast_sets": [{"mutex_answer": "brick and iron", "mutex_caption": "A bench sitting in a brick and iron courtyard in front of a wall."}, {"mutex_answer": "tile", "mutex_caption": "A bench sitting in a tiled courtyard in front of a wall."}, {"mutex_answer": "wood", "mutex_caption": "A bench sitting in a wooden courtyard in front of a wall."}, {"mutex_answer": "stone", "mutex_caption": "A bench sitting in a stone courtyard in front of a wall."}, {"mutex_answer": "concrete", "mutex_caption": "A bench sitting in a concrete courtyard in front of a wall."}], "caption": "A bench sitting in a brick courtyard in front of a wall.", "image_id": 156466, "id": 278, "file_name": "COCO_val2014_000000156466.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000156466.jpg", "flickr_url": "http://farm3.staticflickr.com/2792/4511729263_e1bf535263_z.jpg", "license": 3, "height": 640, "width": 503}