未能成功标注地名的词性，示例：

import jieba
import jieba.posseg as pseg
words = pseg.cut("滨州滨州市")
for word, flag in words:
    if flag == 'ns':
        print('%s' % (word))

结果输出了滨州，而没有滨州市

import jieba
import jieba.posseg as pseg
words = pseg.cut("滨州首尔冲绳")
for word, flag in words:
    if flag == 'ns':
        print('%s' % (word))

结果只输出了滨州 而没有首尔冲绳