user: Question: What was the engine belonging to Pierluigi Martini with a Tyre of P?
Columns: ['Entrant', 'Constructor', 'Chassis', 'Engine', 'Tyres', 'Driver', 'Rounds']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['MRD International', 'Brabham - BMW', 'BT53', 'BMW M12 /13 1.5 L4 t', 'M', 'Nelson Piquet', 'All']
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Tyres" = 'P' AND "Driver" = 'Pierluigi Martini';