text: {"answer": "train", "query": "What is this mode of transportation?", "question_id": 177383002, "contrast_sets": [{"mutex_answer": "car", "mutex_caption": "a yellow and red car engine on its track ", "mutex_detection": "car"}, {"mutex_answer": "subway", "mutex_caption": "a yellow and red subway engine on its track ", "mutex_detection": "subway"}, {"mutex_answer": "truck", "mutex_caption": "a yellow and red truck engine on its track ", "mutex_detection": "truck"}], "caption": "a yellow and red train engine on its track ", "image_id": 177383, "detection": "train", "boxes": [[8.63, 67.16, 379.68, 418.51]], "id": 641, "file_name": "COCO_val2014_000000177383.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000177383.jpg", "flickr_url": "http://farm9.staticflickr.com/8536/8701612564_f5b3b72af0_z.jpg", "license": 6, "height": 640, "width": 425}