cover story vs simulation

cover story

noun
  • A fictitious account that is intended to hide one's real motive. 

  • A story included in a publication that is highlighted on the front cover. 

simulation

noun
  • Assuming an appearance which is feigned, or not true. 

  • A video game designed to convey a more or less realistic experience, as of a sport or warfare. 

  • The process of simulating. 

  • Something that simulates a system or environment in order to predict actual behaviour. 

  • The act of falling over in order to be awarded a foul, when no foul has been committed. 

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