exchange of contracts vs storage

exchange of contracts

noun
  • The act of exchanging contracts. 

  • The point or stage at which a conveyancing contract comes into existence between negotiating parties for the carrying out of a disposition of an estate in land; usually requiring the payment of a deposit. 

storage

noun
  • The act of storing goods; the state of being stored. 

  • The price charged for storing goods. 

  • Any computer device, including such as a disk, on which data is stored for a longer term than main memory. 

  • An object or place in which something is stored. 

verb
  • To put into storage; to store. 

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