bed and breakfast vs boarding house

bed and breakfast

noun
  • A private home, guesthouse, etc. where guests are provided overnight accommodations and served breakfast but usually no other meals. 

  • A score of 26, made up of a score of 20, 1 and 5 in any order. 

boarding house

noun
  • A private house in which paying residents are provided with accommodation and meals. 

  • A boarding school building where boarders live during term time. 

How often have the words bed and breakfast and boarding house occurred in a corpus of books? (source: Google Ngram Viewer )