user: Question: What is the team captain when the shirt sponser is Quick?
Columns: ['Club', 'Chairman', 'Current manager', 'Team captain', 'Kitmaker', 'Shirt sponsor']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['R.S.C. Anderlecht', 'Roger Vanden Stock', 'Ariel Jacobs', 'Lucas Biglia', 'Adidas', 'BNP Paribas Fortis']
SQL:

assistant: SELECT "Team captain" FROM "Table" WHERE "Shirt sponsor" = 'Quick';