13812
= = E-Series product = = A new form of commodities investment : Initiative of NSEL with E-Series Products For the first time in  India   National Spot Exchange  has introduced E-Series products in commodities .
 country of headquarters: India, National Spot Exchange
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:
 country of headquarters: India, National Spot Exchange