and cash flows from operations. 

(3)	Our future minimum rental commitments under noncancellable leases comprise the majority of the operating lease obligations presented above. We expect to fund these commitments with existing cash and cash flows from operations. 

(4)	The amount presented above as purchase and construction commitments includes all known open purchase orders and all known contracts that are take-or-pay contracts. We expect to fund these commitments with existing cash and our cash flows from operations. 

(5)	We have excluded other obligations of $5.86 billion from other long-term liabilities presented above as the amount that will be settled in cash is not known. We have also excluded non-cash items of $71 million and unearned revenue of $1.87 billion. 

In May 2007, we entered into an Agreement and Plan of Merger with aQuantive, Inc. to acquire the company for approximately $6 billion in cash. As part of the Agreement and Plan of Merger, we are required to pay $500 million if certain events occur that result in the merger not being completed. Due to the nature of this obligation, this amount has not been accrued for or included in the above schedule. The acquisition is expected to be completed in August 2007.