{"train": 0, "seaplane": 1, "motorbus": 2, "airplane": 3, "stair": 4, "bicycle": 5, "bus": 6, "car": 7, "crosswalk": 8, "hydrant": 9, "motorcycle": 10, "mountain": 11, "stairs": 12, "tow truck": 13, "traffic light": 14, "traffic sign": 15, "truck": 16}