What is the size of Itwara central forest reserve?
CREATE TABLE table_16577990_1 (size_in_km² INTEGER, central_forest_reserve VARCHAR)
SELECT MIN(size_in_km²) FROM table_16577990_1 WHERE central_forest_reserve = "Itwara"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_16577990_1 (size_in_km² INTEGER, central_forest_reserve VARCHAR) Question: What is the size of Itwara central forest reserve? [/INST] SELECT MIN(size_in_km²) FROM table_16577990_1 WHERE central_forest_reserve = "Itwara" </s>