Which gene has the subject number 21?
CREATE TABLE table_name_28 (gene VARCHAR, subject_number VARCHAR)
SELECT gene FROM table_name_28 WHERE subject_number = "21"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_28 (gene VARCHAR, subject_number VARCHAR) Question: Which gene has the subject number 21? [/INST] SELECT gene FROM table_name_28 WHERE subject_number = "21" </s>