这些岛屿有什么特别的用途吗？
即将钓鱼台、黄尾屿、赤屿三岛赏给盛宣怀为产业，供采药之用。[{'character': '即', 'pinyin': 'ji2', 'highest pitch': 8.82, 'lowest pitch': 8.12, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '将', 'pinyin': 'jiang1', 'highest pitch': 9.83, 'lowest pitch': 8.12, 'duration': 0.32, 'prosody hierarchy': '#2'}, {'character': '钓', 'pinyin': 'diao4', 'highest pitch': 10.6, 'lowest pitch': 8.26, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '鱼', 'pinyin': 'v2', 'highest pitch': 9.58, 'lowest pitch': 7.78, 'duration': 0.15, 'prosody hierarchy': 'null'}, {'character': '台', 'pinyin': 'tai2', 'highest pitch': 9.58, 'lowest pitch': 6.36, 'duration': 0.38, 'prosody hierarchy': '#3'}, {'character': '黄', 'pinyin': 'huang2', 'highest pitch': 10.0, 'lowest pitch': 7.91, 'duration': 0.28, 'prosody hierarchy': 'null'}, {'character': '尾', 'pinyin': 'uei2', 'highest pitch': 10.68, 'lowest pitch': 9.73, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '屿', 'pinyin': 'v3', 'highest pitch': 10.31, 'lowest pitch': 4.23, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.06}, {'character': '赤', 'pinyin': 'chiii4', 'highest pitch': 11.26, 'lowest pitch': 7.47, 'duration': 0.31, 'prosody hierarchy': 'null'}, {'character': '屿', 'pinyin': 'v3', 'highest pitch': 10.31, 'lowest pitch': 4.53, 'duration': 0.14, 'prosody hierarchy': '#1'}, {'character': '三', 'pinyin': 'san1', 'highest pitch': 7.63, 'lowest pitch': 4.73, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '岛', 'pinyin': 'dao3', 'highest pitch': 7.63, 'lowest pitch': 4.16, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.18}, {'character': '赏', 'pinyin': 'shang2', 'highest pitch': 8.49, 'lowest pitch': 7.47, 'duration': 0.25, 'prosody hierarchy': 'null'}, {'character': '给', 'pinyin': 'gei3', 'highest pitch': 8.26, 'lowest pitch': 4.82, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '盛', 'pinyin': 'sheng4', 'highest pitch': 9.63, 'lowest pitch': 6.38, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '宣', 'pinyin': 'xvan1', 'highest pitch': 9.84, 'lowest pitch': 8.07, 'duration': 0.18, 'prosody hierarchy': '#1'}, {'character': '怀', 'pinyin': 'huai2', 'highest pitch': 9.6, 'lowest pitch': 6.6, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '为', 'pinyin': 'uei2', 'highest pitch': 10.68, 'lowest pitch': 7.4, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '产', 'pinyin': 'chan3', 'highest pitch': 7.74, 'lowest pitch': 4.89, 'duration': 0.27, 'prosody hierarchy': 'null'}, {'character': '业', 'pinyin': 'ie4', 'highest pitch': 8.92, 'lowest pitch': 5.46, 'duration': 0.23, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.07}, {'character': '供', 'pinyin': 'gong1', 'highest pitch': 8.68, 'lowest pitch': 8.0, 'duration': 0.23, 'prosody hierarchy': '#1'}, {'character': '采', 'pinyin': 'cai3', 'highest pitch': 7.0, 'lowest pitch': 5.32, 'duration': 0.29, 'prosody hierarchy': 'null'}, {'character': '药', 'pinyin': 'iao4', 'highest pitch': 9.91, 'lowest pitch': 7.0, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '之', 'pinyin': 'zhiii1', 'highest pitch': 7.74, 'lowest pitch': 6.38, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 6.91, 'lowest pitch': 5.9, 'duration': 0.27, 'prosody hierarchy': '#4'}]