5764
In 1984 the Bell System Divestiture split  Bell of Pennsylvania  off into a Regional Bell Operating Company along with the 21 other BOCs   had a majority stake in .
 subsidiaries: Bell of Pennsylvania, 
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:  Bell of Pennsylvania,  
Answer:
 subsidiaries: Bell of Pennsylvania, 