chain store vs deli

chain store

noun
  • A retail outlet that is one of a group of similar establishments having common format, contents, ownership and management. 

deli

noun
  • A shop that sells cooked or prepared food ready for serving. 

  • Food sold at a delicatessen. 

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