user: Question: What livery belongs to the Steam Locomotive type builder that was building before 1989?
Columns: ['Livery', 'Locomotive type', 'Wheel Arrangement', 'Builder', 'Year built']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Highland Railway green', 'Steam', '2-6-2', 'Ravenglass & Eskdale Railway', 1989.0]
SQL:

assistant: SELECT "Livery" FROM "Table" WHERE "Year built" < 1989.0 AND "Locomotive type" = 'Steam';