3150
A spokesman for the union leading the strike action the  International Association of Machinists and Aerospace Workers  (  IAM  ) said the organization was in daily contact with a federal mediator but had no direct contact with Boeing management .
 alternate names: International Association of Machinists and Aerospace Workers, IAM
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:
 alternate names: International Association of Machinists and Aerospace Workers, IAM