CREATE TABLE table_name_13 (water__sqmi_ INT, county VARCHAR, ansi_code VARCHAR)

Which Water (sqmi) has a County of benson, and an ANSI code smaller than 1759243?
SELECT MIN(water__sqmi_) FROM table_name_13 WHERE county = "benson" AND ansi_code < 1759243
SELECT MIN("water__sqmi_") FROM "table_name_13" WHERE "ansi_code" < 1759243 AND "benson" = "county"