8299
He was previously CEO chairman and co-founder ( with brother  Gary  ) of   Software a major software publishing firm that produced such hit titles as Myst Where in the World is Carmen Sandiego ?
 founded by: Gary, 
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:  Gary,  
Answer:
 founded by: Gary, 