What's the shut down state of the unit that's been in commercial operation since 01.02.1984?
CREATE TABLE table_12983929_1 (shut_down VARCHAR, commercial_operation VARCHAR)
SELECT shut_down FROM table_12983929_1 WHERE commercial_operation = "01.02.1984"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_12983929_1 (shut_down VARCHAR, commercial_operation VARCHAR) Question: What's the shut down state of the unit that's been in commercial operation since 01.02.1984? [/INST] SELECT shut_down FROM table_12983929_1 WHERE commercial_operation = "01.02.1984" </s>