coconut vs upper story

coconut

noun
  • A fruit of the coconut palm (not a true nut), Cocos nucifera, having a fibrous husk surrounding a large seed. 

  • The human head. 

  • A female breast. 

  • A black person considered to have overly assimilated to white culture, a black race traitor. 

  • A Pacific islander. 

  • A hard-shelled seed of this fruit, having white flesh and a fluid-filled central cavity. 

  • The edible white flesh of this fruit. 

  • The coconut palm. 

  • A Hispanic or other dark-skinned person considered to have overly assimilated to white culture, a race traitor. 

upper story

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