CREATE TABLE table_28732 ("Institution" TEXT, "Location" TEXT, "Team Nickname" TEXT, "Years" TEXT, "New Conference" TEXT, "New Classification" TEXT)

What is the nickname at the University of Nebraska at Omaha?
SELECT "Team Nickname" FROM table_28732 WHERE "Institution" = 'University of Nebraska at Omaha'
SELECT "Team Nickname" FROM "table_28732" WHERE "Institution" = 'University of Nebraska at Omaha'