Question: Who is the father of the player who signed as a free agent with the Spurs following the 2003–04 Seattle SuperSonics season?
{'answer': 'Rick Barry', 'supporting_facts': [['2003–04 Seattle SuperSonics season', 0], ['2003–04 Seattle SuperSonics season', 8], ['Brent Barry', 0], ['Brent Barry', 1]]}