这个气味是从哪里来的？
截至记者发稿时，气味已然散去，疑云依旧笼罩。[{'character': '截', 'pinyin': 'jie2', 'highest pitch': 9.86, 'lowest pitch': 8.46, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '至', 'pinyin': 'zhiii4', 'highest pitch': 10.42, 'lowest pitch': 8.84, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '记', 'pinyin': 'ji4', 'highest pitch': 10.34, 'lowest pitch': 8.84, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '者', 'pinyin': 'zhe3', 'highest pitch': 8.91, 'lowest pitch': 5.58, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '发', 'pinyin': 'fa1', 'highest pitch': 10.62, 'lowest pitch': 5.82, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '稿', 'pinyin': 'gao3', 'highest pitch': 9.79, 'lowest pitch': 5.61, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '时', 'pinyin': 'shiii2', 'highest pitch': 7.82, 'lowest pitch': 5.61, 'duration': 0.33, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '气', 'pinyin': 'qi4', 'highest pitch': 8.92, 'lowest pitch': 7.99, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '味', 'pinyin': 'uei4', 'highest pitch': 7.99, 'lowest pitch': 6.76, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '已', 'pinyin': 'i3', 'highest pitch': 6.88, 'lowest pitch': 4.64, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '然', 'pinyin': 'ran2', 'highest pitch': 6.62, 'lowest pitch': 4.25, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '散', 'pinyin': 'san4', 'highest pitch': 10.59, 'lowest pitch': 8.09, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '去', 'pinyin': 'qv4', 'highest pitch': 8.09, 'lowest pitch': 5.1, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.21}, {'character': '疑', 'pinyin': 'i2', 'highest pitch': 7.21, 'lowest pitch': 6.45, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '云', 'pinyin': 'vn2', 'highest pitch': 7.74, 'lowest pitch': 5.79, 'duration': 0.27, 'prosody hierarchy': '#2'}, {'character': '依', 'pinyin': 'i1', 'highest pitch': 9.29, 'lowest pitch': 7.74, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '旧', 'pinyin': 'jiou4', 'highest pitch': 9.67, 'lowest pitch': 7.42, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '笼', 'pinyin': 'long3', 'highest pitch': 7.42, 'lowest pitch': 4.11, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '罩', 'pinyin': 'zhao4', 'highest pitch': 9.08, 'lowest pitch': 7.36, 'duration': 0.29, 'prosody hierarchy': '#4'}]