Berg vs Seal

Berg

name
  • A municipality of Troms, Norway. 

  • A former duchy and later grand duchy in Westphalia (Western Germany). 

  • A surname from German common in the US, associated with German or Scandinavian ancestry. 

Seal

name
  • A village in Sevenoaks district, Kent, England. 

  • A surname. 

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