innocence vs straightness

innocence

noun
  • Lack of understanding about sensitive subjects such as sexuality and crime. 

  • Absence of responsibility for a crime, tort, etc. 

  • Lack of ability or intention to harm or damage. 

straightness

noun
  • The state or quality of being straight (especially in the sense of "heterosexual"). 

  • The result or product of being straight. 

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