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India  's state-run  Oil and Natural Gas Corporation  said Thursday its board had approved an investment of 316 million dollars to develop gas fields in western India a report said .
 country of headquarters: India, Oil and Natural Gas Corporation
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, Oil and Natural Gas Corporation