tokens: But I am getting this error when validating the document : ' Can not find declaration of element " example " . '
ner_tags: O O O O O O O O O O O B-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block I-Output_Block