Question: Who built the train in 1966 with over 40 produced?
SQL: SELECT "Builder’s Model" FROM "2-1140522-4" WHERE "Total produced" > 40.0 AND "Build date" = '1966';

Question: What is the PRR class of the Freight train built in 1967 with a B-B wheel arrangement?
SQL: SELECT "PRR Class" FROM "2-1140522-4" WHERE "Wheel arrangement" = 'B-B' AND "Service" = 'Freight' AND "Build date" = '1967';

Question: What PRR class has a Wheel arrangement of A1A-A1A?
SQL: SELECT "PRR Class" FROM "2-1140522-4" WHERE "Wheel arrangement" = 'A1A-A1A';