807
The 2010 11  National Basketball League  was the thirty-third season of competition since its establishment in  1979  .
 founded: National Basketball League, 1979
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:  National Basketball League, 1979 
Answer:
 founded: National Basketball League, 1979