recommendation vs remonstrance

recommendation

noun
  • A commendation or endorsement. 

  • An act of recommending. 

  • A suggestion or proposal about the best course of action (with adpositions including "about" for the context and "to" for the course of action) 

  • That which is recommended. 

remonstrance

noun
  • A remonstration; disapproval; a formal, usually written, objection or protest. 

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