identification vs papers

identification

noun
  • A document or documents serving as evidence of a person's identity. 

  • The combination of identifying (which one, which thing) and validating the identity (proving or confirming it); identifying and authenticating viewed as a unitary concept in cognition. 

  • A feeling of support, sympathy, understanding, or belonging towards somebody or something. 

  • A particular instance of identifying something. 

  • The act of identifying (i.e., which one, which thing). 

  • The state of being identified. 

papers

noun
  • Official documents or identification, as a passport. 

  • cigarette papers 

  • A collection of documents, unpublished writing or correspondence in an archive or library collection. 

  • He lost his papers while travelling and had a hard time getting home. 

How often have the words identification and papers occurred in a corpus of books? (source: Google Ngram Viewer )