CREATE TABLE table_65535 ("School" TEXT, "Location" TEXT, "Mascot" TEXT, "Size" FLOAT, "IHSAA Class" TEXT, "County" TEXT)

Which IHSAA Class has a Size larger than 511?
SELECT "IHSAA Class" FROM table_65535 WHERE "Size" > '511'
SELECT "IHSAA Class" FROM "table_65535" WHERE "Size" > '511'