text: {"answer": "city", "query": "What type of bus is this?", "question_id": 320482009, "contrast_sets": [{"mutex_answer": "sightseeing", "mutex_caption": "A sightseeing bus stopped on a busy city street near some pedestrians."}, {"mutex_answer": "commercial", "mutex_caption": "A commercial bus stopped on a busy city street near some pedestrians."}], "caption": "A city bus stopped on a busy city street near some pedestrians.", "image_id": 320482, "id": 864, "file_name": "COCO_val2014_000000320482.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000320482.jpg", "flickr_url": "http://farm5.staticflickr.com/4004/4296837405_55593a90ae_z.jpg", "license": 4, "height": 425, "width": 640}