6349
Tata Steel  part of the sprawling  Tata Group  conglomerate was catapulted to eighth-biggest steelmaker from 56th after purchasing Anglo-Dutch company Corus for 13.7 billion dollars two years ago .
 subsidiaries: Tata Steel, Tata Group
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Tata Steel, Tata Group 
Answer:
 subsidiaries: Tata Steel, Tata Group