6046
Air  India  operates hangars at the airport while  Bharat Petroleum  and Indian Oil act as fuellers .
 subsidiaries: India, Bharat Petroleum
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:  India, Bharat Petroleum 
Answer:
 subsidiaries: India, Bharat Petroleum