pact vs piece of paper

pact

noun

  • An agreement; a compact; a covenant. 

  • An alliance or coalition. 

  • An agreement between two or more nations 

verb

  • To form a pact; to agree formally. 

piece of paper

noun

  • A marriage certificate. 

  • A single sheet or scrap of paper. 

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