这个钱币是什么？
用他们收藏者的行话，该钱币叫蒙疆五千。[{'character': '用', 'pinyin': 'iong4', 'highest pitch': 9.67, 'lowest pitch': 8.61, 'duration': 0.2, 'prosody hierarchy': '#1'}, {'character': '他', 'pinyin': 'ta1', 'highest pitch': 9.26, 'lowest pitch': 8.82, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '们', 'pinyin': 'men5', 'highest pitch': 9.03, 'lowest pitch': 8.08, 'duration': 0.21, 'prosody hierarchy': '#1'}, {'character': '收', 'pinyin': 'shou1', 'highest pitch': 11.31, 'lowest pitch': 8.08, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '藏', 'pinyin': 'cang2', 'highest pitch': 11.15, 'lowest pitch': 7.68, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '者', 'pinyin': 'zhe3', 'highest pitch': 13.33, 'lowest pitch': 8.26, 'duration': 0.12, 'prosody hierarchy': 'null'}, {'character': '的', 'pinyin': 'de5', 'highest pitch': 0, 'lowest pitch': 0, 'duration': 0.09, 'prosody hierarchy': '#1'}, {'character': '行', 'pinyin': 'hang2', 'highest pitch': 8.01, 'lowest pitch': 4.74, 'duration': 0.26, 'prosody hierarchy': 'null'}, {'character': '话', 'pinyin': 'hua4', 'highest pitch': 10.54, 'lowest pitch': 6.61, 'duration': 0.27, 'prosody hierarchy': '#3'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.26}, {'character': '该', 'pinyin': 'gai1', 'highest pitch': 9.56, 'lowest pitch': 8.79, 'duration': 0.17, 'prosody hierarchy': 'null'}, {'character': '钱', 'pinyin': 'qian2', 'highest pitch': 9.37, 'lowest pitch': 6.8, 'duration': 0.21, 'prosody hierarchy': 'null'}, {'character': '币', 'pinyin': 'bi4', 'highest pitch': 8.25, 'lowest pitch': 6.65, 'duration': 0.15, 'prosody hierarchy': '#1'}, {'character': '叫', 'pinyin': 'jiao4', 'highest pitch': 7.96, 'lowest pitch': 5.67, 'duration': 0.3, 'prosody hierarchy': '#2'}, {'pinyin': 'sp1', 'highest pitch': 0.0, 'lowest pitch': 0.0, 'duration': 0.1}, {'character': '蒙', 'pinyin': 'meng3', 'highest pitch': 7.59, 'lowest pitch': 5.06, 'duration': 0.22, 'prosody hierarchy': 'null'}, {'character': '疆', 'pinyin': 'jiang1', 'highest pitch': 10.78, 'lowest pitch': 5.59, 'duration': 0.24, 'prosody hierarchy': '#1'}, {'character': '五', 'pinyin': 'u3', 'highest pitch': 9.81, 'lowest pitch': 4.46, 'duration': 0.14, 'prosody hierarchy': 'null'}, {'character': '千', 'pinyin': 'qian1', 'highest pitch': 9.7, 'lowest pitch': 4.46, 'duration': 0.34, 'prosody hierarchy': '#4'}]