desire vs the object of the exercise

desire

verb
  • To require; to demand; to claim. 

  • To miss; to regret. 

  • To want emotionally or sexually. 

  • To want; to wish for earnestly. 

  • To express a wish for; to entreat; to request. 

  • To put a request to (someone); to entreat. 

noun
  • Someone or something wished for. 

  • Strong attraction, particularly romantic or sexual. 

  • The feeling of desiring; an eager longing for something. 

  • Motivation. 

the object of the exercise

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