CREATE TABLE table_name_1 (listed VARCHAR, built VARCHAR, type VARCHAR)

What is the listed date of the Warren pony truss bridge that was built in 1925?
SELECT listed FROM table_name_1 WHERE built = "1925" AND type = "warren pony truss"
SELECT "listed" FROM "table_name_1" WHERE "1925" = "built" AND "type" = "warren pony truss"