Question: how many times is the fuel propulsion is CNG?
SQL: SELECT COUNT("Fleet Series (Quantity)") FROM "1-10007452-3" WHERE "Fuel Propulsion" = 'CNG';

Question: what is the fuel propulsion where the fleet series (quantity) is 310-329 (20)?
SQL: SELECT "Fuel Propulsion" FROM "1-10007452-3" WHERE "Fleet Series (Quantity)" = '310-329 (20)';

Question: who is the manufacturer for the order year 1998?
SQL: SELECT "Manufacturer" FROM "1-10007452-3" WHERE "Order Year" = '1998';

Question: how many times is the model GE40LFR?
SQL: SELECT COUNT("Manufacturer") FROM "1-10007452-3" WHERE "Model" = 'GE40LFR';

Question: how many times is the fleet series (quantity) is 468-473 (6)?
SQL: SELECT COUNT("Order Year") FROM "1-10007452-3" WHERE "Fleet Series (Quantity)" = '468-473 (6)';

Question: what is the powertrain (engine/transmission) when the order year is 2000?
SQL: SELECT "Powertrain (Engine/Transmission)" FROM "1-10007452-3" WHERE "Order Year" = '2000';