Stick vs hierarchy

Stick

noun
  • A member of the Official IRA. 

name
  • The Chapman Stick, an electric musical instrument devised by Emmett Chapman. 

hierarchy

noun
  • A social, religious, economic or political system or organization in which people or groups of people are ranked with some superior to others based on their status, authority or some other trait. 

  • A body of authoritative officials organized in nested ranks. 

  • Any group of objects ranked so that every one but the topmost is subordinate to a specified one above it. 

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