user: Question: What series is at the position 7?
Columns: ['Position', 'Driver', 'Points', 'Winnings', 'Series']
Types: ['real', 'text', 'real', 'text', 'text']
Sample row: [1.0, 'Mark Martin', 72.0, '$225,000', 'NASCAR Winston Cup']
SQL:

assistant: SELECT "Series" FROM "Table" WHERE "Position" = 7.0;