What's the departed date that the HMS Leith of the Royal Navy?
CREATE TABLE table_name_51 (date_departed VARCHAR, navy VARCHAR, name VARCHAR)
SELECT date_departed FROM table_name_51 WHERE navy = "royal navy" AND name = "hms leith"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_51 (date_departed VARCHAR, navy VARCHAR, name VARCHAR) Question: What's the departed date that the HMS Leith of the Royal Navy? [/INST] SELECT date_departed FROM table_name_51 WHERE navy = "royal navy" AND name = "hms leith" </s>