6239
Between deployment on June 2 2004 and June 17 2004 taskforce 1/6 BLT of the  22nd Marine Expeditionary Unit  ( or  MEU  ) engaged Taliban and other anti-coalition forces in both Oruzgan Province and Zabul Province culminating in the Dai Chopan region of Afghanistan .
 alternate names: 22nd Marine Expeditionary Unit, MEU
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:  22nd Marine Expeditionary Unit, MEU 
Answer:
 alternate names: 22nd Marine Expeditionary Unit, MEU