1183
In December 2007  NWA  announced that DHL International would terminate its cargo agreement with the  airline  effective late 2008 .
 alternate names: NWA, airline
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:  NWA, airline 
Answer:
 alternate names: NWA, airline