front room vs guesthouse

front room

noun
  • A living room; a room in the front of the house which is used for entertaining guests or for special occasions. 

guesthouse

noun
  • A small house near a main house, for lodging visitors. 

  • A private house offering accommodation to paying guests; a boarding house; a bed and breakfast. 

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