How large is the fleet size of the airline with the IATA code of 5j?
CREATE TABLE table_15637071_1 (fleet_size VARCHAR, iata VARCHAR)
SELECT COUNT(fleet_size) FROM table_15637071_1 WHERE iata = "5J"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_15637071_1 (fleet_size VARCHAR, iata VARCHAR) Question: How large is the fleet size of the airline with the IATA code of 5j? [/INST] SELECT COUNT(fleet_size) FROM table_15637071_1 WHERE iata = "5J" </s>