Table: max_light_rail_vehicles
Columns: designation
car_numbers
manufacturer
model_no
first_used
quantity

Question: Which First used has a Quantity of 26?
SQL: SELECT "first_used" FROM max_light_rail_vehicles WHERE "quantity" = 26

Question: Which Designation has a Manufacturer of siemens, and a Quantity of 52?
SQL: SELECT "designation" FROM max_light_rail_vehicles WHERE "manufacturer" = 'siemens' AND "quantity" = 52

Question: Which Designation has a Quantity of 52?
SQL: SELECT "designation" FROM max_light_rail_vehicles WHERE "quantity" = 52

Question: Which Quantity has a Designation of type 4?
SQL: SELECT AVG("quantity") FROM max_light_rail_vehicles WHERE "designation" = 'type 4'

Question: Which model number does bombardier manufacture?
SQL: SELECT "model_no" FROM max_light_rail_vehicles WHERE "manufacturer" = 'bombardier'

Question: Which Car numbers have a First used of currently on order?
SQL: SELECT "car_numbers" FROM max_light_rail_vehicles WHERE "first_used" = 'currently on order'