3302
Politicians often pay unusual deference to  Andy Stern  president of the  Service Employees International Union  because he heads the nation's fastest-growing most politically potent union .
 top members employees: Andy Stern, Service Employees International Union
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:
 top members employees: Andy Stern, Service Employees International Union