这是一个大树。
一只猫跑到这棵树的树干上找到一个树洞，在那里生下小猫。[{'character': '一', 'pinyin': 'i4', 'highest pitch': 9.57, 'lowest pitch': 8.21, 'duration': 0.13, 'prosody hierarchy': 'null'}, {'character': '只', 'pinyin': 'zhiii1', 'highest pitch': 10.08, 'lowest pitch': 9.88, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '猫', 'pinyin': 'mao1', 'highest pitch': 10.29, 'lowest pitch': 9.81, 'duration': 0.29, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '跑', 'pinyin': 'pao3', 'highest pitch': 8.58, 'lowest pitch': 6.1, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '到', 'pinyin': 'dao4', 'highest pitch': 7.07, 'lowest pitch': 5.91, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '这', 'pinyin': 'zhe4', 'highest pitch': 8.68, 'lowest pitch': 6.66, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '棵', 'pinyin': 'ke1', 'highest pitch': 9.07, 'lowest pitch': 8.76, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '树', 'pinyin': 'shu4', 'highest pitch': 9.93, 'lowest pitch': 7.31, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.31, 'lowest pitch': 6.73, 'duration': 0.1, 'prosody hierarchy': '#1'}, {'character': '树', 'pinyin': 'shu4', 'highest pitch': 9.93, 'lowest pitch': 8.85, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '干', 'pinyin': 'gan4', 'highest pitch': 10.3, 'lowest pitch': 8.19, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '上', 'pinyin': 'shang4', 'highest pitch': 8.19, 'lowest pitch': 6.24, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.1}, {'character': '找', 'pinyin': 'zhao3', 'highest pitch': 7.46, 'lowest pitch': 5.49, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '到', 'pinyin': 'dao4', 'highest pitch': 7.07, 'lowest pitch': 5.53, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '一', 'pinyin': 'i2', 'highest pitch': 7.35, 'lowest pitch': 6.72, 'duration': 0.09, 'prosody hierarchy': 'null'}, {'character': '个', 'pinyin': 'ge4', 'highest pitch': 8.74, 'lowest pitch': 8.43, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '树', 'pinyin': 'shu4', 'highest pitch': 9.93, 'lowest pitch': 8.43, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '洞', 'pinyin': 'dong4', 'highest pitch': 10.85, 'lowest pitch': 6.74, 'duration': 0.24, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.46}, {'character': '在', 'pinyin': 'zai4', 'highest pitch': 8.4, 'lowest pitch': 7.11, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '那', 'pinyin': 'na4', 'highest pitch': 7.45, 'lowest pitch': 6.41, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '里', 'pinyin': 'li3', 'highest pitch': 6.41, 'lowest pitch': 4.96, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '生', 'pinyin': 'sheng1', 'highest pitch': 10.3, 'lowest pitch': 5.73, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '下', 'pinyin': 'xia4', 'highest pitch': 10.72, 'lowest pitch': 8.77, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '小', 'pinyin': 'xiao3', 'highest pitch': 4.24, 'lowest pitch': 4.03, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '猫', 'pinyin': 'mao1', 'highest pitch': 10.29, 'lowest pitch': 4.03, 'duration': 0.31, 'prosody hierarchy': '#4'}]