CREATE TABLE table_77489 ("Institution" CLOB, "Location" CLOB, "Founded" FLOAT, "Affiliation" CLOB, "Enrollment" FLOAT, "Nickname" CLOB)

What is Southern Illinois University Edwardsville's affiliation?
SELECT "Affiliation" FROM table_77489 WHERE "Institution" = 'southern illinois university edwardsville'
SELECT "Affiliation" FROM "table_77489" WHERE "Institution" = 'southern illinois university edwardsville'