Polish vs boar

Polish

noun
  • A breed of chickens with a large crest of feathers. 

  • The language spoken in Poland. 

adj
  • Of, from or native to Poland, or relating to the Polish language. 

boar

noun
  • A male bear. 

  • A male pig. 

  • A male boar (sense 1). 

  • A wild boar (Sus scrofa), the wild ancestor of the domesticated pig. 

  • A male guinea pig. 

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