CREATE TABLE table_name_52 (railway VARCHAR, location VARCHAR, objectnumber VARCHAR)

Which Railway has a Location of shildon, and an ObjectNumber of 1978-7006?
SELECT railway FROM table_name_52 WHERE location = "shildon" AND objectnumber = "1978-7006"
SELECT "railway" FROM "table_name_52" WHERE "1978-7006" = "objectnumber" AND "location" = "shildon"