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+Summary:
+代码写的有问题
+
+Detailed Comments:
+
+1、代码一运行就报如下错误：
+ 108         for ner in ners:
+    109             print(ners)
+--> 110             if ner[2] == 'lacation':
+    111                 ner[3] = 'CITY'
+    112         seg_sentence = fool.cut(sentence)
+
+IndexError: list index out of range
+这个错误是因为fun_clean这个函数写的有问题，这里就是对数据进行清洗过滤，实体识别不用放在这个函数中；
+2、就算你要写在这个函数中，你的这也需要做一个判断，如果ners为空呢，你这里就是因为ners为空所以报的错误
+ words, ners = fool.analysis(sentence)
+        for ner in ners:
+            print(ners)
+            if ner[2] == 'lacation':
+                ner[3] = 'CITY'
+3、修改下代码吧，提交代码前 ，自己先测试一下
+
+Overall Score: 76
+--------------------------------------------------------------------------------------------------------------------------
+
+Thanks for your efforts.
+
+-Your instructor
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