appeasement vs provocation

appeasement

noun
  • The state of being appeased; the policy of giving in to demands in order to preserve the peace. 

provocation

noun
  • The second step in OPQRST regarding the investigation of what makes the symptoms MOI or NOI improve or deteriorate. 

  • The act of provoking, inciting or annoying someone into doing something 

  • Something that provokes; a provocative act 

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