他是因为什么原因心情不好呢？
他最近心情不好，总喜欢咬人。[{'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.93, 'lowest pitch': 9.58, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '最', 'pinyin': 'zuei4', 'highest pitch': 10.03, 'lowest pitch': 8.04, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '近', 'pinyin': 'jin4', 'highest pitch': 9.03, 'lowest pitch': 8.04, 'duration': 0.21, 'prosody hierarchy': '#2'}, {'character': '心', 'pinyin': 'xin1', 'highest pitch': 10.77, 'lowest pitch': 8.26, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '情', 'pinyin': 'qing2', 'highest pitch': 10.77, 'lowest pitch': 8.14, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '不', 'pinyin': 'bu4', 'highest pitch': 10.53, 'lowest pitch': 8.6, 'duration': 0.16, 'prosody hierarchy': 'null'}, {'character': '好', 'pinyin': 'hao3', 'highest pitch': 9.07, 'lowest pitch': 4.36, 'duration': 0.3, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '总', 'pinyin': 'zong2', 'highest pitch': 11.1, 'lowest pitch': 8.23, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '喜', 'pinyin': 'xi3', 'highest pitch': 11.1, 'lowest pitch': 7.13, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '欢', 'pinyin': 'huan5', 'highest pitch': 7.69, 'lowest pitch': 7.13, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '咬', 'pinyin': 'iao3', 'highest pitch': 7.64, 'lowest pitch': 5.15, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 6.99, 'lowest pitch': 5.15, 'duration': 0.3, 'prosody hierarchy': '#4'}]