text: {"answer": "truck", "query": "What kind of vehicle is this?", "question_id": 376677001, "contrast_sets": [{"mutex_answer": "crane", "mutex_caption": "A crane of some sort moving along a road.", "mutex_detection": "crane"}, {"mutex_answer": "excavator", "mutex_caption": "An excavator of some sort moving along a road.", "mutex_detection": "excavator"}, {"mutex_answer": "tractor", "mutex_caption": "A tractor of some sort moving along a road.", "mutex_detection": "tractor"}, {"mutex_answer": "forklift", "mutex_caption": "A forklift of some sort moving along a road.", "mutex_detection": "forklift"}], "caption": "A truck of some sort moving along a road.", "image_id": 376677, "detection": "truck", "boxes": [[223.0, 139.37, 310.6, 296.67]], "id": 320, "file_name": "COCO_val2014_000000376677.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000376677.jpg", "flickr_url": "http://farm9.staticflickr.com/8291/7643139966_04b2c62ba1_z.jpg", "license": 5, "height": 444, "width": 640}