user: Question: What engine was used after 1984?
Columns: ['Year', 'Team/Chassis', 'Engine', 'Tyres', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1984.0, 'Alfa Romeo 184T', 'Alfa Romeo 890T V8 tc', 'G', 11.0]
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Year" > 1984.0;