apartment vs bed and breakfast

apartment

noun
  • A complete domicile occupying only part of a building, especially one for rent; a flat. 

  • A conceptual space used for separation in the threading architecture. Objects in one apartment cannot directly access those in another, but must use a proxy. 

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. 

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