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Tata Steel  part of the sprawling  Tata Group  conglomerate bought Anglo-Dutch company Corus for 13.7 billion dollars in 2007 .
 subsidiaries: Tata Steel, Tata Group
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:
 subsidiaries: Tata Steel, Tata Group