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In 2007  Corus Group  was purchased by India-based  Tata Steel  and was renamed Tata Steel Europe in 2010 .
 subsidiaries: Corus Group, Tata Steel
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:  Corus Group, Tata Steel 
Answer:
 subsidiaries: Corus Group, Tata Steel