11896
At the warehouse in  Mumbai   Air India  has developed a system of inventory management for cargo handling of import/export functions .
 city of headquarters: Mumbai, Air India
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:  Mumbai, Air India 
Answer:
 city of headquarters: Mumbai, Air India