What are the serial numbers for the locomotives of Class 4-8-4 — oooooooo — northern?
CREATE TABLE table_name_28 (serial_numbers VARCHAR, class VARCHAR)
SELECT serial_numbers FROM table_name_28 WHERE class = "4-8-4 — oooooooo — northern"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_28 (serial_numbers VARCHAR, class VARCHAR) Question: What are the serial numbers for the locomotives of Class 4-8-4 — oooooooo — northern? [/INST] SELECT serial_numbers FROM table_name_28 WHERE class = "4-8-4 — oooooooo — northern" </s>