premise: 2. Upon the termination of the services to be performed by the undersigned (or earlier if requested by Goldman Sachs), the undersigned shall return to Goldman Sachs all copies of documents, papers or other material relating to Goldman Sachs or obtained or developed in the course of performing services for Goldman Sachs, or containing or derived from Confidential Information which are in the undersigned's possession, together, if requested by Goldman Sachs, with a certificate signed by the undersigned, in form and substance satisfactory to Goldman Sachs, to the effect that all such Confidential Information has been returned.