Which viewers have the language of troff (typesetter runoff) , groff (gnu runoff)?
CREATE TABLE table_1574968_1 (viewer VARCHAR, language VARCHAR)
SELECT viewer FROM table_1574968_1 WHERE language = "troff (typesetter runoff) , groff (GNU runoff)"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_1574968_1 (viewer VARCHAR, language VARCHAR) Question: Which viewers have the language of troff (typesetter runoff) , groff (gnu runoff)? [/INST] SELECT viewer FROM table_1574968_1 WHERE language = "troff (typesetter runoff) , groff (GNU runoff)" </s>