Who were the guests in the episode with production code 6021? 
CREATE TABLE table_25691838_2 (guest VARCHAR, production_code VARCHAR)
SELECT guest FROM table_25691838_2 WHERE production_code = 6021
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_25691838_2 (guest VARCHAR, production_code VARCHAR) Question: Who were the guests in the episode with production code 6021?  [/INST] SELECT guest FROM table_25691838_2 WHERE production_code = 6021 </s>