tokens: I 'm using Amazon Redshift to do data analysis , and sometimes I use ' unload ' to unload a RedShift table into S3 and then copy the data into another Redshift instance .
ner_tags: O O O B-Application I-Application O O O O O O O O O O B-Function O O O O B-Data_Structure I-Data_Structure O B-File_Type O O O O O O O B-Application O O