Question: What is the wheel arrangement of CF-16-4, and 16 produced?
SQL: SELECT "Wheel arrangement" FROM "2-1140522-5" WHERE "Builder’s Model" = 'CF-16-4' AND "Total produced" = 16.0;

Question: What is the power of B-B wheel arrangement, built in 1952?
SQL: SELECT "Power output" FROM "2-1140522-5" WHERE "Wheel arrangement" = 'B-B' AND "Build date" = '1952';

Question: When was the build date for C-C wheel arrangement and Freight service?
SQL: SELECT "Build date" FROM "2-1140522-5" WHERE "Service" = 'Freight' AND "Wheel arrangement" = 'C-C';

Question: When was the build date for FF20 PRR class and Erie Built builder's model?
SQL: SELECT "Build date" FROM "2-1140522-5" WHERE "PRR Class" = 'FF20' AND "Builder’s Model" = 'Erie Built';