escape route vs inconsistency

escape route

noun
  • A way out of a difficult or unpleasant situation. 

  • A path used by someone to escape from a dangerous place. 

inconsistency

noun
  • An incompatibility between two propositions that cannot both be true. 

  • The state of being inconsistent. 

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