这是什么？
村民院中的大窟窿。[{'character': '村', 'pinyin': 'cuen1', 'highest pitch': 11.13, 'lowest pitch': 10.71, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '民', 'pinyin': 'min2', 'highest pitch': 10.84, 'lowest pitch': 8.72, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '院', 'pinyin': 'van4', 'highest pitch': 9.93, 'lowest pitch': 7.64, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '中', 'pinyin': 'zhong1', 'highest pitch': 9.53, 'lowest pitch': 7.64, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 9.29, 'lowest pitch': 7.7, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '大', 'pinyin': 'da4', 'highest pitch': 9.35, 'lowest pitch': 7.35, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '窟', 'pinyin': 'ku1', 'highest pitch': 13.46, 'lowest pitch': 9.19, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '窿', 'pinyin': 'long5', 'highest pitch': 10.06, 'lowest pitch': 4.58, 'duration': 0.3, 'prosody hierarchy': '#4'}]