List the population density per kilometer for the city of abra de ilog.
CREATE TABLE table_261951_1 (pop_density__per_km²_ VARCHAR, municipality VARCHAR)
SELECT pop_density__per_km²_ FROM table_261951_1 WHERE municipality = "Abra de Ilog"
<s>[INST] Write mssql query to answer the following question given the database schema. Schema: CREATE TABLE table_261951_1 (pop_density__per_km²_ VARCHAR, municipality VARCHAR) Question: List the population density per kilometer for the city of abra de ilog. [/INST] SELECT pop_density__per_km²_ FROM table_261951_1 WHERE municipality = "Abra de Ilog" </s>