user: Question: What is the General classification for a points classification leader of Bradley Wiggins?
Columns: ['Stage (Winner)', 'General classification', 'Mountains classification', 'Points classification', 'Combination classification', 'Team Classification']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['0 Prologue ( Bradley Wiggins )', 'Bradley Wiggins', 'Sylvain Chavanel', 'Bradley Wiggins', 'Bradley Wiggins', 'no award']
SQL:

assistant: SELECT "General classification" FROM "Table" WHERE "Points classification" = 'Bradley Wiggins';