What is the county with an AA IHSAA class in ferdinand?
CREATE TABLE table_name_90 (county VARCHAR, ihsaa_class VARCHAR, location VARCHAR)
SELECT county FROM table_name_90 WHERE ihsaa_class = "aa" AND location = "ferdinand"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_90 (county VARCHAR, ihsaa_class VARCHAR, location VARCHAR) Question: What is the county with an AA IHSAA class in ferdinand? [/INST] SELECT county FROM table_name_90 WHERE ihsaa_class = "aa" AND location = "ferdinand" </s>