Which date was a rest day?
CREATE TABLE table_name_81 (date VARCHAR, course VARCHAR)
SELECT date FROM table_name_81 WHERE course = "rest day"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_81 (date VARCHAR, course VARCHAR) Question: Which date was a rest day? [/INST] SELECT date FROM table_name_81 WHERE course = "rest day" </s>