What operating system was needed for 2D games?
CREATE TABLE table_name_91 (required_os VARCHAR, type VARCHAR)
SELECT required_os FROM table_name_91 WHERE type = "2d"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_91 (required_os VARCHAR, type VARCHAR) Question: What operating system was needed for 2D games? [/INST] SELECT required_os FROM table_name_91 WHERE type = "2d" </s>