2737
It  became the largest union in the first half of the 20th century even after the founding of the  Congress of Industrial Organizations  ( CIO ) in 1935 with which it merged in 1955 .
 employee of: It, Congress of Industrial Organizations
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:
 employee of: It, Congress of Industrial Organizations