Illustrative package auction with four bidders and two products. Each product has 50 MMlb available. Product A is warm red; Product B is green. Each outlined bid is one whole package; OR separates alternatives. Optimization selects at most one package per bidder. Current and earlier bids can win. Prices rise or hold independently. The Bid column records the round in which a selected bid was submitted. Provisional Winning Bids are not final awards. cpp means cents per pound; MMlb means millions of pounds.