Bow vs Gap

Bow

name
  • A suburb in eastern London, England. 

  • A surname. 

  • A village and civil parish in Mid Devon district, Devon, England (OS grid ref SS7201). 

Gap

name
  • A town, the capital of the department of the Hautes-Alpes, Provence-Alpes-Côte d'Azur, France. 

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