这是什么东西？
汽车轮胎上，有三个像柳叶的扇片。[{'character': '汽', 'pinyin': 'qi4', 'highest pitch': 10.49, 'lowest pitch': 9.1, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '车', 'pinyin': 'che1', 'highest pitch': 10.38, 'lowest pitch': 9.1, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '轮', 'pinyin': 'luen2', 'highest pitch': 10.29, 'lowest pitch': 7.58, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '胎', 'pinyin': 'tai1', 'highest pitch': 10.54, 'lowest pitch': 9.86, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '上', 'pinyin': 'shang4', 'highest pitch': 10.56, 'lowest pitch': 6.6, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.24}, {'character': '有', 'pinyin': 'iou3', 'highest pitch': 7.23, 'lowest pitch': 5.95, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '三', 'pinyin': 'san1', 'highest pitch': 10.33, 'lowest pitch': 9.68, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '个', 'pinyin': 'ge4', 'highest pitch': 10.42, 'lowest pitch': 7.65, 'duration': 0.19, 'prosody hierarchy': '#2'}, {'character': '像', 'pinyin': 'xiang4', 'highest pitch': 9.61, 'lowest pitch': 7.9, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '柳', 'pinyin': 'liou3', 'highest pitch': 7.9, 'lowest pitch': 4.83, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '叶', 'pinyin': 'ie4', 'highest pitch': 10.16, 'lowest pitch': 5.77, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.79, 'lowest pitch': 7.05, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '扇', 'pinyin': 'shan4', 'highest pitch': 8.46, 'lowest pitch': 6.9, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '片', 'pinyin': 'pian4', 'highest pitch': 8.61, 'lowest pitch': 6.01, 'duration': 0.31, 'prosody hierarchy': '#4'}]