text: {"answer": "green", "query": "What color is the street sign?", "question_id": 558594000, "contrast_sets": [{"mutex_answer": "yellow", "mutex_caption": "a yellow street sign and a traffic light"}, {"mutex_answer": "blue", "mutex_caption": "a blue street sign and a traffic light"}, {"mutex_answer": "green and yellow", "mutex_caption": "a green and yellow street sign and a traffic light"}, {"mutex_answer": "green and red", "mutex_caption": "a green and red street sign and a traffic light"}, {"mutex_answer": "green and brown", "mutex_caption": "a green and brown street sign and a traffic light"}], "caption": "a green street sign and a traffic light", "image_id": 558594, "id": 1337, "file_name": "COCO_val2014_000000558594.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000558594.jpg", "flickr_url": "http://farm1.staticflickr.com/182/428789136_06e7c0c019_z.jpg", "license": 2, "height": 251, "width": 500}