6280
The  airline  was founded as del Sur in 2004 by  Grupo Marsans  and started operations in December 2004 after receiving approval from the Chilean civil aviation authorities in November 2004 .
 founded by: airline, Grupo Marsans
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:  airline, Grupo Marsans 
Answer:
 founded by: airline, Grupo Marsans