what is the nation when the world rank is 6 and the birth date is 1971-07-31?
CREATE TABLE table_name_88 (nation VARCHAR, world_rank VARCHAR, birth_date VARCHAR)
SELECT nation FROM table_name_88 WHERE world_rank = "6" AND birth_date = "1971-07-31"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_88 (nation VARCHAR, world_rank VARCHAR, birth_date VARCHAR) Question: what is the nation when the world rank is 6 and the birth date is 1971-07-31? [/INST] SELECT nation FROM table_name_88 WHERE world_rank = "6" AND birth_date = "1971-07-31" </s>