#Exhibit A of the Partnership Agreement is hereby amended and restated in its entirety as follows:

#Exhibit A of the Partnership Agreement is hereby amended and restated in its entirety as follows:

Pursuant to the parties' mutual understanding, the following terms of the Agreement shall be amended as follows:

or to such other address as the Partnership or such Class B Purchaser may designate in writing. All notices and communications shall be deemed to have been duly given: at the time delivered by hand, if personally delivered; at the time of transmittal, if sent via electronic mail prior to 5:00 p.m., Central Time on the date submitted; on the next succeeding Business Day, if sent via electronic mail at or after 5:00 p.m., Central Time on the date submitted; upon actual receipt if sent by certified mail, return receipt requested, or regular mail, if mailed; when receipt acknowledged, if sent via facsimile; and upon actual receipt when delivered to an air courier guaranteeing overnight delivery.

Amendments to the Agreement. The following amendments are made to the Agreement:

2.1Section 1.4 of the Agreement is amended and replaced in its entirety with the following:

Partnership Agreement. Units issued upon payment of the Phantom Units shall be subject to the terms of the Plan and the Partnership Agreement. Upon the issuance of Units to the Participant, the Participant shall, automatically and without further action on his or her part, # be admitted to the Partnership as a Limited Partner (as defined in the Partnership Agreement) with respect to the Units, and # become bound, and be deemed to have agreed to be bound, by the terms of the Partnership Agreement.

Amendments to the Agreement. Effective upon the payment of the Amendment Fee, the Agreement shall be amended as follows:

Amendments to the Agreement. The Agreement is hereby amended as of the First Amendment Effective Date by adding the following to the Patent section of [Schedule 5]:

Partnership Agreement. Units issued upon payment of the Phantom Units under the Award shall be subject to the terms of the Plan and the Partnership Agreement. Upon the issuance of Units to the Participant, the Participant shall, automatically and without further action on his or her part, # be admitted to the Partnership as a Limited Partner (as defined in the Partnership Agreement) with respect to the Units, and # become bound, and be deemed to have agreed to be bound, by the terms of the Partnership Agreement.