user: Question: Who was the constructor of the car driven by Heikki Kovalainen?
Columns: ['Driver', 'Constructor', 'Laps', 'Time/Retired', 'Grid']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Kimi Räikkönen', 'Ferrari', '56', '1:31:18.555', '2']
SQL:

assistant: SELECT "Constructor" FROM "Table" WHERE "Driver" = 'Heikki Kovalainen';