直到地面上形成大火
原油顺地下管沟流淌，形成地面流淌火，火势蔓延。[{'character': '原', 'pinyin': 'van2', 'highest pitch': 10.96, 'lowest pitch': 8.47, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '油', 'pinyin': 'iou2', 'highest pitch': 10.75, 'lowest pitch': 7.57, 'duration': 0.28, 'prosody hierarchy': '#2'}, {'character': '顺', 'pinyin': 'shuen4', 'highest pitch': 10.02, 'lowest pitch': 8.51, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '地', 'pinyin': 'di4', 'highest pitch': 10.28, 'lowest pitch': 9.04, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 9.29, 'lowest pitch': 7.04, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '管', 'pinyin': 'guan3', 'highest pitch': 7.07, 'lowest pitch': 4.68, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '沟', 'pinyin': 'gou1', 'highest pitch': 9.71, 'lowest pitch': 4.84, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '流', 'pinyin': 'liou2', 'highest pitch': 10.43, 'lowest pitch': 7.9, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '淌', 'pinyin': 'tang3', 'highest pitch': 5.31, 'lowest pitch': 4.83, 'duration': 0.37, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.25}, {'character': '形', 'pinyin': 'xing2', 'highest pitch': 7.97, 'lowest pitch': 7.08, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '成', 'pinyin': 'cheng2', 'highest pitch': 8.27, 'lowest pitch': 6.51, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '地', 'pinyin': 'di4', 'highest pitch': 10.28, 'lowest pitch': 9.33, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '面', 'pinyin': 'mian4', 'highest pitch': 9.33, 'lowest pitch': 7.3, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '流', 'pinyin': 'liou2', 'highest pitch': 10.43, 'lowest pitch': 6.82, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '淌', 'pinyin': 'tang2', 'highest pitch': 10.2, 'lowest pitch': 8.31, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '火', 'pinyin': 'huo3', 'highest pitch': 13.98, 'lowest pitch': 4.63, 'duration': 0.34, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.23}, {'character': '火', 'pinyin': 'huo3', 'highest pitch': 13.98, 'lowest pitch': 6.56, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '势', 'pinyin': 'shiii4', 'highest pitch': 9.08, 'lowest pitch': 6.87, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '蔓', 'pinyin': 'man4', 'highest pitch': 10.99, 'lowest pitch': 7.11, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '延', 'pinyin': 'ian2', 'highest pitch': 7.11, 'lowest pitch': 5.42, 'duration': 0.31, 'prosody hierarchy': '#4'}]