science fiction vs sword and sorcery

science fiction

noun
  • Fiction in which advanced technology or science is a key element. 

  • Technology that, while theoretically possible, is not yet practical. 

sword and sorcery

noun
  • A genre of narratives—including short stories, novels, television shows, films, and computer games—which combines wizardry and other fantastical supernatural elements with violent combat using pre-modern weaponry. 

adj
  • Of or pertaining to a genre of narratives—including short stories, novels, television shows, films, and computer games—which combines wizardry and other fantastical supernatural elements with violent combat using pre-modern weaponry. 

How often have the words science fiction and sword and sorcery occurred in a corpus of books? (source: Google Ngram Viewer )