text: {"answer": "train", "query": "What kind of vehicle is this?", "question_id": 562227001, "contrast_sets": [{"mutex_answer": "car", "mutex_caption": "A car passing under a walk way", "mutex_detection": "car"}, {"mutex_answer": "tram", "mutex_caption": "A city tram passing under a walk way", "mutex_detection": "tram"}, {"mutex_answer": "station wagon", "mutex_caption": "A station wagon passing under a walk way", "mutex_detection": "station wagon"}, {"mutex_answer": "bike", "mutex_caption": "A bike passing under a walk way", "mutex_detection": "bike"}], "caption": "A city train passing under a walk way", "image_id": 562227, "detection": "train", "boxes": [[57.17, 220.04, 175.82, 80.9]], "id": 602, "file_name": "COCO_val2014_000000562227.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000562227.jpg", "flickr_url": "http://farm9.staticflickr.com/8369/8437710949_b6873950f6_z.jpg", "license": 4, "height": 480, "width": 640}