今天是故宫开门日。
昨天一早，故宫端门外便已人头攒动。[{'character': '昨', 'pinyin': 'zuo2', 'highest pitch': 7.9, 'lowest pitch': 7.45, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '天', 'pinyin': 'tian1', 'highest pitch': 11.3, 'lowest pitch': 7.61, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i4', 'highest pitch': 11.27, 'lowest pitch': 7.52, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '早', 'pinyin': 'zao3', 'highest pitch': 7.52, 'lowest pitch': 4.58, 'duration': 0.29, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.17}, {'character': '故', 'pinyin': 'gu4', 'highest pitch': 9.21, 'lowest pitch': 7.67, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '宫', 'pinyin': 'gong1', 'highest pitch': 9.4, 'lowest pitch': 7.72, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '端', 'pinyin': 'duan1', 'highest pitch': 9.82, 'lowest pitch': 8.9, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '门', 'pinyin': 'men2', 'highest pitch': 9.08, 'lowest pitch': 6.23, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '外', 'pinyin': 'uai4', 'highest pitch': 8.44, 'lowest pitch': 6.59, 'duration': 0.26, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '便', 'pinyin': 'bian4', 'highest pitch': 8.56, 'lowest pitch': 5.82, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '已', 'pinyin': 'i3', 'highest pitch': 5.82, 'lowest pitch': 4.78, 'duration': 0.2, 'prosody hierarchy': '#2'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 10.2, 'lowest pitch': 6.61, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '头', 'pinyin': 'tou2', 'highest pitch': 9.96, 'lowest pitch': 9.65, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '攒', 'pinyin': 'cuan2', 'highest pitch': 9.84, 'lowest pitch': 5.42, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '动', 'pinyin': 'dong4', 'highest pitch': 10.51, 'lowest pitch': 7.09, 'duration': 0.21, 'prosody hierarchy': '#4'}]