有关什么事件的两个版本？
南京警方有两个版本。[{'character': '南', 'pinyin': 'nan2', 'highest pitch': 8.49, 'lowest pitch': 7.85, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '京', 'pinyin': 'jing1', 'highest pitch': 10.49, 'lowest pitch': 9.96, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '警', 'pinyin': 'jing3', 'highest pitch': 10.23, 'lowest pitch': 5.82, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '方', 'pinyin': 'fang1', 'highest pitch': 8.97, 'lowest pitch': 6.4, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '有', 'pinyin': 'iou2', 'highest pitch': 9.01, 'lowest pitch': 7.94, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '两', 'pinyin': 'liang3', 'highest pitch': 10.11, 'lowest pitch': 5.02, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '个', 'pinyin': 'ge4', 'highest pitch': 9.51, 'lowest pitch': 5.43, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '版', 'pinyin': 'ban2', 'highest pitch': 8.84, 'lowest pitch': 5.98, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '本', 'pinyin': 'ben3', 'highest pitch': 6.73, 'lowest pitch': 3.07, 'duration': 0.27, 'prosody hierarchy': '#4'}]