text: {"answer": "green", "query": "What color are the walls?", "question_id": 423165000, "contrast_sets": [{"mutex_answer": "blue", "mutex_caption": "a bathroom with blue walls and a  purple rug "}, {"mutex_answer": "white", "mutex_caption": "a bathroom with white walls and a  purple rug "}, {"mutex_answer": "gray", "mutex_caption": "a bathroom with gray walls and a  purple rug "}, {"mutex_answer": "tan", "mutex_caption": "a bathroom with tan walls and a  purple rug "}, {"mutex_answer": "yellow", "mutex_caption": "a bathroom with yellow walls and a  purple rug "}], "caption": "a bathroom with green walls and a  purple rug ", "image_id": 423165, "id": 1266, "file_name": "COCO_val2014_000000423165.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000423165.jpg", "flickr_url": "http://farm6.staticflickr.com/5242/5278879947_10f4acd51a_z.jpg", "license": 4, "height": 478, "width": 640}