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:
"""
1/23/2020 Collection Period, and (ii) the amount on deposit in the Acquisition Account after giving effect to the acquisition of Receivables on that date exceeds (y) the aggregate Note Balance. "Overcollateralization Target Amount" means an amount equal to: (i) on the Closing Date, 10.50% of the Adjusted Pool Balance as of the Initial Cutoff Date; (ii) for any date of determination (other than the Closing Date), prior to the Amortization Period, on which the pool of Receivables meets all of the Floor Credit Enhancement Composition Tests, the greater of (x) the result of (a)(i) the aggregate Note Balance, divided by (ii) 1 minus 0.1050, minus (b) the aggregate Note Balance, and (y) 1.00% of the Adjusted Pool Balance as of the Closing Date; (iii) for any date of determination (other than the Closing Date), prior to the Amortization Period, on which the pool of Receivables does not meet all of the Floor Credit Enhancement Composition Tests, the greater of (x) the result of (a)(i) the aggregate Note Balance, divided by (ii) 1 minus 0.1350, minus (b) the aggregate Note Balance, and (y) 1.00% of the Adjusted Pool Balance as of the Closing Date; (iv) for any date of determination, during the Amortization Period, on which the pool of Receivables meets all of the Floor Credit Enhancement Composition Tests, the greater of (x) 14.50% of the Adjusted Pool Balance as of the end of the calendar month immediately preceding such date of determination, and (y) 1.00% of the Adjusted Pool Balance as of the Closing Date; or (v) for any date of determination, during the Amortization Period, on which the pool of Receivables does not meet all of the Floor Credit Enhancement Composition Tests, the greater of (x) 17.50% of the Adjusted Pool Balance as of the end of the calendar month immediately preceding such date of determination, and (y) 1.00% of the Adjusted Pool Balance as of the Closing Date. "Owner Trustee" means Wilmington Trust, National Association, a national banking association, not in its individual capacity but solely as Owner Trustee under the Trust Agreement. "Owner Trustee Fee" means a monthly fee equal to 1/12th of $15,000, payable on each Payment Date. "Parent Support Agreement" means the guaranty, dated as of the Closing Date, among the Parent Support Provider, the Depositor, the Issuer and the Indenture Trustee, as amended, restated, supplemented or modified from time to time. "Parent Support Provider" means Verizon. A-28 Source: VERIZON ABS LLC, 8-K, 1/23/2020 "Payment Date" means the 20th day of each month or, if not a Business Day, the next Business Day, starting in March 2020. For a Collection Period, the related Payment Date means the Payment Date following the end of the Collection Period. "Percentage Interest" shall mean, with respect to each Certificate, the percentage interest in the Issuer represented by such Certificate. "Permitted Activities" has the meaning stated in Section 2.3(a) of the Trust Agreement. "Permitted Investments" means book-entry securities, negotiable instruments or securities represented by instruments in bearer or registered form that evidence: (a) (x) direct or fully guaranteed United States treasury obligations, (y) U.S. Department of Housing and Urban Development public agency bonds, Federal Housing Administration debentures, Government National Mortgage Association guaranteed mortgage-backed securities or participation certificates, RefCorp debt obligations, SBA-guaranteed participation certificates and guaranteed pool certificates or (z) Farm Credit System consolidated systemwide bonds and notes, Federal Home Loan Banks' consolidated debt obligations, Federal Home Loan Mortgage Corp. debt obligations and Federal National Mortgage Association debt obligations, if, with respect to the investments listed in clause (z), they meet the criteria of S&P for collateral for securities having ratings equivalent to the respective ratings of the Notes in effect at the Closing Date; (b) demand deposits, time deposits, certificates of deposit or bankers' acceptances of any depository institution or trust company (i) incorporated under the laws of the United States or any State or any United States branch or agency of a foreign bank, (ii) subject to supervision and examination by federal or State banking or depository institution authorities and (iii) where the commercial paper or other short-term unsecured debt obligations (other than obligations with a rating based on the credit of a Person other than the depository institution or trust company) of such depository institution or trust company have the Required Rating; (c) commercial paper, including asset-backed commercial paper, having the Required Rating; (d) investments in money market funds having a rating in the highest investment grade category from each of S&P and Moody's (including funds for which
"""

Extract the exact clause related to "Parties" from the excerpt above.

assistant: Depositor