Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_58 ( built VARCHAR, number_in_class VARCHAR, owner VARCHAR )

### Question ###
What was built in a class with less than 10, and the Downer Rail owner?

### Accurate SQL ###

SELECT built FROM table_name_58 WHERE number_in_class < 10 AND owner = "downer rail"