user: Question: Name the engine for years before 1990 and chassis of EuroBrun ER189
Columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']
Types: ['real', 'text', 'text', 'text', 'real']
Sample row: [1989.0, 'EuroBrun Racing', 'EuroBrun ER188B', 'Judd V8', 0.0]
SQL:

assistant: SELECT "Engine" FROM "Table" WHERE "Year" < 1990.0 AND "Chassis" = 'EuroBrun ER189';