exchange of contracts vs intercourse

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. 

intercourse

noun
  • Dealings with people, including commerce and trade. 

  • Sexual intercourse usually involving humans. 

  • Dealings between countries. 

  • Communication, conversation. 

verb
  • To have sexual intercourse. 

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