CHICAGO — Suitors are lining up to carve out divisions of Supervalu following the company's announcement last month that strategic divestitures were on the table as the Eden Prairie, Minn.-based grocer seeks to turn around its business performance. A Crain's report published Monday identified Klaff Realty as one of the first companies to express an interest, in this case the Jewel-Osco piece of the business.