我们需要更多的证据来支持我们的观点。
只是三一方面苦于没有确凿证据。[{'character': '只', 'pinyin': 'zhiii3', 'highest pitch': 8.95, 'lowest pitch': 8.41, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 9.91, 'lowest pitch': 9.31, 'duration': 0.24, 'prosody hierarchy': '#2'}, {'character': '三', 'pinyin': 'san1', 'highest pitch': 11.26, 'lowest pitch': 10.53, 'duration': 0.24, 'prosody hierarchy': 'null'}, {'character': '一', 'pinyin': 'i1', 'highest pitch': 11.08, 'lowest pitch': 10.3, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '方', 'pinyin': 'fang1', 'highest pitch': 10.79, 'lowest pitch': 8.7, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '面', 'pinyin': 'mian4', 'highest pitch': 8.8, 'lowest pitch': 6.03, 'duration': 0.24, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '苦', 'pinyin': 'ku3', 'highest pitch': 7.59, 'lowest pitch': 5.78, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '于', 'pinyin': 'v2', 'highest pitch': 7.73, 'lowest pitch': 5.96, 'duration': 0.15, 'prosody hierarchy': '#2'}, {'character': '没', 'pinyin': 'mei2', 'highest pitch': 10.15, 'lowest pitch': 6.73, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '有', 'pinyin': 'iou3', 'highest pitch': 10.74, 'lowest pitch': 6.68, 'duration': 0.17, 'prosody hierarchy': '#1'}, {'character': '确', 'pinyin': 'qve4', 'highest pitch': 8.23, 'lowest pitch': 6.51, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '凿', 'pinyin': 'zao2', 'highest pitch': 6.66, 'lowest pitch': 5.75, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '证', 'pinyin': 'zheng4', 'highest pitch': 8.87, 'lowest pitch': 6.34, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '据', 'pinyin': 'jv4', 'highest pitch': 6.71, 'lowest pitch': 5.86, 'duration': 0.25, 'prosody hierarchy': '#4'}]