What was the quantity of the fleet information for DWWR 50 and 51?
CREATE TABLE table_name_4 (
    quantity_made VARCHAR,
    fleet_numbers VARCHAR
)
SELECT quantity_made FROM table_name_4 WHERE fleet_numbers = "dwwr 50 and 51"
Below are sql tables schemas paired with instruction that describes a task. Using valid SQLite, write a response that appropriately completes the request for the provided tables. ### Instruction: What was the quantity of the fleet information for DWWR 50 and 51? ### Input: CREATE TABLE table_name_4 (
    quantity_made VARCHAR,
    fleet_numbers VARCHAR
) ### Response: SELECT quantity_made FROM table_name_4 WHERE fleet_numbers = "dwwr 50 and 51"