这家餐厅的特色美食是什么？
老板称，出售的天鹅是渔民用网捕杀后送来的，绝对安全。[{'character': '老', 'pinyin': 'lao2', 'highest pitch': 9.95, 'lowest pitch': 7.17, 'duration': 0.19, 'prosody hierarchy': 'null'}, {'character': '板', 'pinyin': 'ban3', 'highest pitch': 10.77, 'lowest pitch': 6.21, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '称', 'pinyin': 'cheng1', 'highest pitch': 10.47, 'lowest pitch': 6.87, 'duration': 0.31, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.23}, {'character': '出', 'pinyin': 'chu1', 'highest pitch': 9.47, 'lowest pitch': 9.22, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '售', 'pinyin': 'shou4', 'highest pitch': 10.03, 'lowest pitch': 6.86, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.65, 'lowest pitch': 6.26, 'duration': 0.08, 'prosody hierarchy': '#1'}, {'character': '天', 'pinyin': 'tian1', 'highest pitch': 9.07, 'lowest pitch': 6.4, 'duration': 0.3, 'prosody hierarchy': 'null'}, {'character': '鹅', 'pinyin': 'e2', 'highest pitch': 8.13, 'lowest pitch': 6.11, 'duration': 0.25, 'prosody hierarchy': '#2'}, {'character': '是', 'pinyin': 'shiii4', 'highest pitch': 8.02, 'lowest pitch': 6.46, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '渔', 'pinyin': 'v2', 'highest pitch': 8.67, 'lowest pitch': 6.46, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '民', 'pinyin': 'min2', 'highest pitch': 8.68, 'lowest pitch': 7.45, 'duration': 0.26, 'prosody hierarchy': '#1'}, {'character': '用', 'pinyin': 'iong4', 'highest pitch': 9.22, 'lowest pitch': 7.37, 'duration': 0.23, 'prosody hierarchy': 'null'}, {'character': '网', 'pinyin': 'uang2', 'highest pitch': 10.46, 'lowest pitch': 7.31, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '捕', 'pinyin': 'bu3', 'highest pitch': 8.73, 'lowest pitch': 5.02, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '杀', 'pinyin': 'sha1', 'highest pitch': 10.63, 'lowest pitch': 5.32, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '后', 'pinyin': 'hou4', 'highest pitch': 10.74, 'lowest pitch': 9.03, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '送', 'pinyin': 'song4', 'highest pitch': 8.77, 'lowest pitch': 7.0, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '来', 'pinyin': 'lai2', 'highest pitch': 7.0, 'lowest pitch': 5.54, 'duration': 0.2, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 7.65, 'lowest pitch': 5.84, 'duration': 0.14, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.09}, {'character': '绝', 'pinyin': 'jve2', 'highest pitch': 6.91, 'lowest pitch': 6.35, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '对', 'pinyin': 'duei4', 'highest pitch': 11.16, 'lowest pitch': 6.4, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '安', 'pinyin': 'an1', 'highest pitch': 8.12, 'lowest pitch': 7.14, 'duration': 0.18, 'prosody hierarchy': 'null'}, {'character': '全', 'pinyin': 'qvan2', 'highest pitch': 8.09, 'lowest pitch': 5.37, 'duration': 0.32, 'prosody hierarchy': '#4'}]