他们为什么这么做？
是他们脑子有毛病。[{'character': '是', 'pinyin': 'shiii4', 'highest pitch': 10.29, 'lowest pitch': 9.79, 'duration': 0.19, 'prosody hierarchy': '#1'}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 11.07, 'lowest pitch': 9.79, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '们', 'pinyin': 'men5', 'highest pitch': 11.24, 'lowest pitch': 10.71, 'duration': 0.11, 'prosody hierarchy': '#1'}, {'character': '脑', 'pinyin': 'nao3', 'highest pitch': 10.71, 'lowest pitch': 4.48, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '子', 'pinyin': 'zii5', 'highest pitch': 10.6, 'lowest pitch': 4.89, 'duration': 0.13, 'prosody hierarchy': '#1'}, {'character': '有', 'pinyin': 'iou3', 'highest pitch': 10.6, 'lowest pitch': 5.78, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '毛', 'pinyin': 'mao2', 'highest pitch': 7.51, 'lowest pitch': 4.51, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '病', 'pinyin': 'bing4', 'highest pitch': 10.34, 'lowest pitch': 7.51, 'duration': 0.28, 'prosody hierarchy': '#4'}]