text: {"answer": "grass", "query": "What surface are they playing on?", "question_id": 524595001, "contrast_sets": [{"mutex_answer": "astroturf", "mutex_caption": "A couple of men playing tennis on an astroturf court."}, {"mutex_answer": "clay", "mutex_caption": "A couple of men playing tennis on a clay court."}, {"mutex_answer": "concrete", "mutex_caption": "A couple of men playing tennis on a concrete court."}, {"mutex_answer": "teepee", "mutex_caption": "A couple of men playing tennis on a teepee court."}, {"mutex_answer": "dirt", "mutex_caption": "A couple of men playing tennis on a dirt court."}], "caption": "A couple of men playing tennis on a grass court.", "image_id": 524595, "id": 524, "file_name": "COCO_val2014_000000524595.jpg", "coco_url": "http://images.cocodataset.org/val2014/COCO_val2014_000000524595.jpg", "flickr_url": "http://farm5.staticflickr.com/4114/4745426498_360a8e5e88_z.jpg", "license": 1, "height": 427, "width": 640}