CREATE TABLE table_28501 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Type" TEXT, "Enrollment" FLOAT, "Joined" FLOAT, "Nickname" TEXT)

What is the nickname of the institution from Concordia University, Nebraska?
SELECT "Nickname" FROM table_28501 WHERE "Institution" = 'Concordia University, Nebraska'
SELECT "Nickname" FROM "table_28501" WHERE "Institution" = 'Concordia University, Nebraska'