user: Question: What chassis has Patrick Racing as an entrant, with a start greater than 6?
Columns: ['Year', 'Chassis', 'Engine', 'Start', 'Finish', 'Entrant']
Types: ['real', 'text', 'text', 'real', 'real', 'text']
Sample row: [1981.0, 'Phoenix 80', 'Ford Cosworth DFX', 12.0, 4.0, "Jerry O'Connell Racing"]
SQL:

assistant: SELECT "Chassis" FROM "Table" WHERE "Entrant" = 'Patrick Racing' AND "Start" > 6.0;