CREATE TABLE table_60720 ("Greek Designation" TEXT, "Collegiate Institution" TEXT, "Charter Date" TEXT, "Status" TEXT, "City" TEXT, "U.S. State/District" TEXT)

What's the greek designation of the city riverside?
SELECT "Greek Designation" FROM table_60720 WHERE "City" = 'riverside'
SELECT "Greek Designation" FROM "table_60720" WHERE "City" = 'riverside'