user: Question: Who built the train in 1966 with over 40 produced?
Columns: ['PRR Class', 'Builder’s Model', 'Build date', 'Total produced', 'Wheel arrangement', 'Service', 'Power output']
Types: ['text', 'text', 'text', 'real', 'text', 'text', 'text']
Sample row: ['ES6', 'SW', '1937', 12.0, 'B-B', 'Switcher', 'hp (kW)']
SQL:

assistant: SELECT "Builder’s Model" FROM "Table" WHERE "Total produced" > 40.0 AND "Build date" = '1966';