text: {"answer": "green and red", "query": "What color are the lights?", "question_id": 155451003, "contrast_sets": [{"mutex_answer": "yellow and green", "mutex_caption": "a yellow and green stop light under a bridge"}, {"mutex_answer": "yellow", "mutex_caption": "a yellow stop light under a bridge"}], "caption": "a red and green stop light under a bridge", "image_id": 155451, "id": 1005, "file_name": "COCO_val2014_000000155451.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000155451.jpg", "flickr_url": "http://farm3.staticflickr.com/2748/4386129685_d97ca98bae_z.jpg", "license": 3, "height": 480, "width": 640}