Ripple vs Swallow

Ripple

name
  • A village and civil parish in Dover district, Kent, England (OS grid ref TR3450). 

  • A village and civil parish in Malvern Hills district, Worcestershire, England (OS grid ref SO8737). 

  • A surname. 

Swallow

name
  • A village and civil parish in West Lindsey district, Lincolnshire, England (OS grid ref TA1703). 

  • A surname. 

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