user: Question: Who is the club chairman of the team that Murat Erdoğan is the captain of?
Columns: ['Team', 'Head coach', 'Team captain', 'Venue', 'Capacity', 'Kitmaker', 'Shirt sponsor', 'Club Chairman']
Types: ['text', 'text', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['Ankaragücü', 'Hakan Kutlu', 'Murat Erdoğan', 'Ankara 19 Mayıs Stadium', 19209.0, 'Lotto', 'Turkcell', 'Cemal Azmi Aydın']
SQL:

assistant: SELECT "Club Chairman" FROM "Table" WHERE "Team captain" = 'Murat Erdoğan';