你是指那些迹象是什么？
但是，一些迹象显示，血案由“内部人”挑起。[{'character': '但', 'pinyin': 'dan4', 'highest pitch': 9.51, 'lowest pitch': 9.02, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.08, 'lowest pitch': 8.14, 'duration': 0.3, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.12}, {'character': '一', 'pinyin': 'i4', 'highest pitch': 9.23, 'lowest pitch': 8.78, 'duration': 0.11, 'prosody hierarchy': 'null'}, {'character': '些', 'pinyin': 'xie1', 'highest pitch': 10.0, 'lowest pitch': 8.78, 'duration': 0.16, 'prosody hierarchy': '#1'}, {'character': '迹', 'pinyin': 'ji4', 'highest pitch': 10.5, 'lowest pitch': 9.7, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '象', 'pinyin': 'xiang4', 'highest pitch': 9.32, 'lowest pitch': 7.6, 'duration': 0.22, 'prosody hierarchy': '#1'}, {'character': '显', 'pinyin': 'xian3', 'highest pitch': 12.8, 'lowest pitch': 3.31, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '示', 'pinyin': 'shiii4', 'highest pitch': 9.08, 'lowest pitch': 5.29, 'duration': 0.28, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.18}, {'character': '血', 'pinyin': 'xve4', 'highest pitch': 10.42, 'lowest pitch': 10.06, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '案', 'pinyin': 'an4', 'highest pitch': 10.06, 'lowest pitch': 7.59, 'duration': 0.22, 'prosody hierarchy': '#2'}, {'character': '由', 'pinyin': 'iou2', 'highest pitch': 7.59, 'lowest pitch': 6.12, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '内', 'pinyin': 'nei4', 'highest pitch': 10.33, 'lowest pitch': 7.17, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '部', 'pinyin': 'bu4', 'highest pitch': 7.4, 'lowest pitch': 6.32, 'duration': 0.1, 'prosody hierarchy': 'null'}, {'character': '人', 'pinyin': 'ren2', 'highest pitch': 6.35, 'lowest pitch': 5.59, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '挑', 'pinyin': 'tiao2', 'highest pitch': 7.16, 'lowest pitch': 5.73, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '起', 'pinyin': 'qi3', 'highest pitch': 6.53, 'lowest pitch': 4.85, 'duration': 0.3, 'prosody hierarchy': '#4'}]