user: Question: Who's the captain of the team whose head coach is Alistair Edwards? 
Columns: ['Team', 'Location', 'Stadium', 'Founded', 'Joined', 'Head Coach', 'Captain']
Types: ['text', 'text', 'text', 'real', 'real', 'text', 'text']
Sample row: ['Adelaide United', 'Adelaide , SA', 'Coopers Stadium', 2003.0, 2005.0, 'Josep Gombau', 'Eugene Galeković']
SQL:

assistant: SELECT "Captain" FROM "Table" WHERE "Head Coach" = 'Alistair Edwards';