What grand finalist had a year after 1979, a margin smaller than 30, and winners of essendon?
CREATE TABLE table_name_89 (grand_finalist VARCHAR, winners VARCHAR, year VARCHAR, margin VARCHAR)
SELECT grand_finalist FROM table_name_89 WHERE year > 1979 AND margin < 30 AND winners = "essendon"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_name_89 (grand_finalist VARCHAR, winners VARCHAR, year VARCHAR, margin VARCHAR) Question: What grand finalist had a year after 1979, a margin smaller than 30, and winners of essendon? [/INST] SELECT grand_finalist FROM table_name_89 WHERE year > 1979 AND margin < 30 AND winners = "essendon" </s>