user: Question: Who were the co-drivers of the vehicle that had both a Class position and position of 7th?
Columns: ['Year', 'Team', 'Co-Drivers', 'Class', 'Laps', 'Pos.', 'Class Pos.']
Types: ['real', 'text', 'text', 'text', 'real', 'text', 'text']
Sample row: [2005.0, 'Rollcentre Racing', 'Michael Krumm Bobby Verdon-Roe', 'LMP1', 133.0, 'DNF', 'DNF']
SQL:

assistant: SELECT "Co-Drivers" FROM "Table" WHERE "Class Pos." = '7th' AND "Pos." = '7th';