11953
The acquisitions of Stopanska  Bank  by the  National Bank of Greece  the OKTA refinery by Hellenic Petroleum and the mobile operator Cosmofon by the Greek Cosmote Group are some of the largest Greek business undertakings in the Republic of Macedonia so far .
 subsidiaries: Bank, National Bank of Greece
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: Bank, National Bank of Greece