What is the whenbuilt of the Brighton built Blandford Forum with a withdrawn of september 1964?
CREATE TABLE table_name_67 (whenbuilt VARCHAR, name VARCHAR, builder VARCHAR, withdrawn VARCHAR)
SELECT whenbuilt FROM table_name_67 WHERE builder = "brighton" AND withdrawn = "september 1964" AND name = "blandford forum"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_67 (whenbuilt VARCHAR, name VARCHAR, builder VARCHAR, withdrawn VARCHAR) Question: What is the whenbuilt of the Brighton built Blandford Forum with a withdrawn of september 1964? [/INST] SELECT whenbuilt FROM table_name_67 WHERE builder = "brighton" AND withdrawn = "september 1964" AND name = "blandford forum" </s>