This excerpt taken from the SOHU 10-Q filed May 8, 2007.
Article 16 Warranty of Use
The Buyer shall not, during the period of using the house, change the main construction structure, supporting structure or purpose of use of the house. Unless otherwise agreed in this Contract, the supplemental agreement or the Exhibits, the Buyer shall, during the period of using the house, have the right to share the common area and equipment of the house with others and shall assume related liabilities for such common area in accordance with its sharing of the area.
The Seller shall not change the purpose of use of the common area and equipment of the house.