pencil in vs procure

pencil in

verb
  • to provisionally schedule 

  • to fill in or write in using pencil 

procure

verb
  • To obtain a person as a prostitute for somebody else. 

  • To induce or persuade someone to do something. 

  • To acquire or obtain. 

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