atemoya vs sweetsop

atemoya

noun
  • The tree that bears this fruit. 

  • A hybrid between a cherimoya and a sweetsop 

sweetsop

noun
  • The tropical American evergreen tree on which it grows. 

  • The sugar apple, Annona squamosa. 

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