What's the area of the voivodenship with 51 communes?
CREATE TABLE table_11656578_2 (area_km²__1998_ VARCHAR, no_of_communes VARCHAR)
SELECT area_km²__1998_ FROM table_11656578_2 WHERE no_of_communes = 51
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_11656578_2 (area_km²__1998_ VARCHAR, no_of_communes VARCHAR) Question: What's the area of the voivodenship with 51 communes? [/INST] SELECT area_km²__1998_ FROM table_11656578_2 WHERE no_of_communes = 51 </s>