Where the issue at trial is an alleged breach of a guaranty for payment of a lease, the requirements of the Uniform Commercial Code are not applicable as the guaranty is a contract to pay a debt, even though the amounts are dependent on a lease which does fall under the UCC.The 1st District Appellate Court affirmed in part and vacated in part a decision by Cook County Circuit Judge Diane M. Shelley.Ponderosa Petroleum Co. leased 47 railcars from General Electric Railcar Services Corp. in 2003. Following several extensions …