"这是一起意外吗？"
事后警员到场调查，初步无可疑，但未发现遗书，堕楼原因未明。[{'character': '事', 'pinyin': 'shiii4', 'highest pitch': 10.29, 'lowest pitch': 9.21, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '后', 'pinyin': 'hou4', 'highest pitch': 9.63, 'lowest pitch': 7.99, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '警', 'pinyin': 'jing3', 'highest pitch': 8.13, 'lowest pitch': 5.91, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '员', 'pinyin': 'van2', 'highest pitch': 8.67, 'lowest pitch': 5.71, 'duration': 0.25, 'prosody hierarchy': '#1'}, {'character': '到', 'pinyin': 'dao4', 'highest pitch': 10.18, 'lowest pitch': 8.87, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '场', 'pinyin': 'chang3', 'highest pitch': 8.87, 'lowest pitch': 4.92, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '调', 'pinyin': 'diao4', 'highest pitch': 8.55, 'lowest pitch': 6.83, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '查', 'pinyin': 'cha2', 'highest pitch': 7.33, 'lowest pitch': 5.88, 'duration': 0.32, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.16}, {'character': '初', 'pinyin': 'chu1', 'highest pitch': 8.71, 'lowest pitch': 7.61, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '步', 'pinyin': 'bu4', 'highest pitch': 8.17, 'lowest pitch': 6.96, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '无', 'pinyin': 'u2', 'highest pitch': 10.33, 'lowest pitch': 6.85, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '可', 'pinyin': 'ke3', 'highest pitch': 8.6, 'lowest pitch': 5.17, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '疑', 'pinyin': 'i2', 'highest pitch': 9.12, 'lowest pitch': 5.17, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.36}, {'character': '但', 'pinyin': 'dan4', 'highest pitch': 10.36, 'lowest pitch': 9.4, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '未', 'pinyin': 'uei4', 'highest pitch': 10.6, 'lowest pitch': 9.28, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '发', 'pinyin': 'fa1', 'highest pitch': 10.61, 'lowest pitch': 9.28, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '现', 'pinyin': 'xian4', 'highest pitch': 10.61, 'lowest pitch': 6.44, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '遗', 'pinyin': 'i2', 'highest pitch': 9.12, 'lowest pitch': 6.05, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '书', 'pinyin': 'shu1', 'highest pitch': 10.2, 'lowest pitch': 8.56, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.4}, {'character': '堕', 'pinyin': 'duo4', 'highest pitch': 11.27, 'lowest pitch': 9.29, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '楼', 'pinyin': 'lou2', 'highest pitch': 9.29, 'lowest pitch': 7.64, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '原', 'pinyin': 'van2', 'highest pitch': 8.67, 'lowest pitch': 6.45, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '因', 'pinyin': 'in1', 'highest pitch': 8.48, 'lowest pitch': 7.32, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '未', 'pinyin': 'uei4', 'highest pitch': 10.6, 'lowest pitch': 6.72, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '明', 'pinyin': 'ming2', 'highest pitch': 7.46, 'lowest pitch': 5.55, 'duration': 0.42, 'prosody hierarchy': '#4'}]