Chew vs Serpentine

Chew

name
  • A river in Somerset, England 

  • A surname. 

Serpentine

name
  • A river in New Zealand. 

  • A river in Canada. 

  • The lake in Hyde Park, London. 

  • A river in Alaska. 

  • A river in Australia. 

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