7695
Major corporations with headquarters in Tennessee include FedEx Corporation AutoZone Incorporated and International Paper all based in Memphis ; Pilot Corporation and Regal Entertainment Group based in Knoxville ; Eastman Chemical Company based in Kingsport the North American headquarters of Nissan based in Franklin ; and the head-quarters of Caterpillar Financial ( the finance division of the well known mining company Caterpillar ) based in Nashville ; as well as  Unum  based in  Chattanooga  .
 city of headquarters: Unum, Chattanooga
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 city of headquarters: Unum, Chattanooga