你知道生物柴油是什么吗？
生物柴油公司，收购的就是这种油。[{'character': '生', 'pinyin': 'sheng1', 'highest pitch': 11.01, 'lowest pitch': 10.82, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '物', 'pinyin': 'u4', 'highest pitch': 11.07, 'lowest pitch': 9.15, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '柴', 'pinyin': 'chai2', 'highest pitch': 10.01, 'lowest pitch': 8.39, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '油', 'pinyin': 'iou2', 'highest pitch': 10.14, 'lowest pitch': 8.72, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '公', 'pinyin': 'gong1', 'highest pitch': 9.33, 'lowest pitch': 9.07, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '司', 'pinyin': 'sii1', 'highest pitch': 13.07, 'lowest pitch': 8.96, 'duration': 0.23, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '收', 'pinyin': 'shou1', 'highest pitch': 9.68, 'lowest pitch': 8.29, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '购', 'pinyin': 'gou4', 'highest pitch': 8.77, 'lowest pitch': 6.31, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 6.38, 'lowest pitch': 5.91, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '就', 'pinyin': 'jiou4', 'highest pitch': 10.15, 'lowest pitch': 9.41, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.42, 'lowest pitch': 7.18, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '这', 'pinyin': 'zhe4', 'highest pitch': 8.23, 'lowest pitch': 6.82, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '种', 'pinyin': 'zhong3', 'highest pitch': 7.09, 'lowest pitch': 5.41, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '油', 'pinyin': 'iou2', 'highest pitch': 10.14, 'lowest pitch': 5.1, 'duration': 0.36, 'prosody hierarchy': '#4'}]