[LOGO C&C] EXHIBIT 10.13
This Sublease is made and entered into as of May 8, 2000, by and between Rambus Inc., a Delaware
corporation (Sublessor), and Muse Prime Software, Inc., a Delaware corporation (Sublessee).
A. Rambus Inc. is the Lessee under that certain Master Lease dated March 10, 1991, (for reference purposes
only) First Amendment to Master Lease dated January 12, 1994, (for reference purposes only) and Second
Amendment to Master Lease dated December 1, 1994, (collectively referred to as the "Master Lease"). A copy
of the Master Lease is attached hereto as Exhibit "A." Any capitalized terms used in this Sublease but not defined
herein shall have the same meaning attributed to them under the Master Lease. South Bay/Latham, a California
Limited Partnership, was the orignal Lessor under the Master Lease. The present Lessor under the Master Lease
is Stephen Nakashima.
B. Sublessor and Sublessee now desire to enter into the within Sublease for the Subleased Premises on the terms
and conditions set forth herein.
Now, therefore, in furtherance of the foregoing and in consideration of the mutual covenants set forth below, the
parties hereby agree as follows:
Sublessor hereby subleases to Sublessee on the terms and conditions set forth herein the Premises described in
the Master Lease attached hereto as Exhibit A (Subleased Premises).
Page 1 of 9
2. Relation to Master Lease:
2.1 Except as otherwise stated herein, this Sublease is subject to all of the applicable terms and conditions of the
Master Lease as if Sublessor were the Lessor and Sublessee the Lessee. Sublessee hereby assumes and agrees
to perform all of the obligations of Lessee under the Master Lease to the extent said obligations apply to the
Subleased Premises and Sublessee's use of the common areas, except as specifically set forth herein. Sublessee
shall not commit or permit to be committed on the Subleased Premises or on any other portion of the Project any
act or omission which