system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
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Prospectus, (A) there are no outstanding preemptive or other rights, warrants or options to acquire, or instruments convertible into or exchangeable for, any shares of capital stock or other equity interest in the Company or any of its subsidiaries, or any contract, commitment, agreement, understanding or arrangement of any kind relating to the issuance of any capital stock of the Company or any such subsidiary, any such convertible or exchangeable securities or any such rights, warrants or options (except as contemplated by the terms of the 6.75% Junior Subordinated Debentures due 2065 of the Company) and (B) there will have been no change in the authorized or outstanding capitalization of the Company, except with respect to, in the case of each of clause (A) and (B) above, (i) changes occurring in the ordinary course of business and (ii) changes in outstanding Common Stock and options or rights to acquire Common Stock resulting from transactions relating to the Company's employee benefit, dividend reinvestment or stock purchase plans. 12 (u) The Company maintains a system of internal control over financial reporting (as such term is defined in Rule 13a-15(f) of the Exchange Act) that complies with the requirements of the Exchange Act and has been designed by the Company's principal executive officer and principal financial officer, or under their supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with United States generally accepted accounting principles. The Company's internal control over financial reporting is effective and the Company is not aware of any material weaknesses in its internal control over financial reporting. Since the date of the latest financial statements included or incorporated by reference in each of the Time of Sale Prospectus and the Prospectus, there has been no change in the Company's internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company's internal control over financial reporting. The Company has established and maintains disclosure controls and procedures (as such terms are defined in Rule 13a-15(e) of the Exchange Act) in accordance with the rules and regulations under the Sarbanes-Oxley Act of 2002 (the "Sarbanes-Oxley Act") and the Exchange Act. Such disclosure controls and procedures (a) are designed to provide reasonable assurance that material information relating to the Company and its subsidiaries is made known to the Company's Chief Executive Officer and its Chief Financial Officer by others within those entities. Such disclosure controls and procedures are effective to provide such reasonable assurance. (v) The Company and each of its subsidiaries maintains insurance covering their properties, personnel and business. Such insurance insures against such losses and risks as are adequate in accordance with the Company's perception of customary industry practice to protect the Company and its subsidiaries and their businesses. Neither the Company nor any of its subsidiaries have received notice from any insurer or agent of such insurer that substantial capital improvements or other expenditures will have to be made in order to continue such insurance. All such insurance is outstanding and duly in force on the date hereof and will be outstanding and duly in force on the Commencement Date and the Remarketing Settlement Date. (w) Neither the Company nor any agent thereof acting on the behalf of the Company has taken, and none of them will take, any action that might cause the execution, delivery and performance by the Company and the Trust of the Transaction Agreements, as applicable, the issuance of the Unit Securities by the Company and the Trust, as applicable, the Remarketing of the Remarketing Securities by the Company and the Trust, as applicable, and the consummation by the Company and the Trust, as applicable, of the transactions contemplated hereby and thereby to violate Regulation T (12 C.F.R. Part 220), Regulation U (12 C.F.R. Part 221) or Regulation X (12 C.F.R. Part 224) of the Board of Governors of the Federal Reserve System. (x) Deloitte & Touche LLP ("Deloitte & Touche"), who has issued an unqualified opinion on the financial statements and supporting schedules included or incorporated by reference in each of the Time of Sale Prospectus and the Prospectus (other than the financial information for the quarterly periods or the year ended and as of December 31, 2010) and has audited the Company's internal control over financial reporting and management's assessment thereof, is an independent registered public accounting firm as required by the Securities Act. The consolidated historical statements together with the related schedules
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Extract the exact clause related to "Source Code Escrow" from the excerpt above.