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:
"""
player) Which shall be comprised of Flix Exporter 4 for Windows Demo with the On2 branding and addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. Delivery within 90 days. o Flix Exporter 5 for Mac (including Flix FLV player) Which shall be comprised of Flix Exporter 4 for Mac with the On2 branding and addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. Delivery within 120 days. o Flix Exporter 5 for Mac Demo (including Flix FLV player) Which shall be comprised of Flix Exporter 4 for Mac Demo with the On2 branding and addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. Delivery within 120 days. o Flix Lite 5 for Windows Which shall be comprised of Flix Lite 3 for Windows with the On2 branding and addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. Delivery within 120 days. o Flix Lite 5 for Windows Demo Which shall be comprised of Flix Lite 3 for Windows Demo with the On2 branding and addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. Delivery within 120 days. o Flix Lite 5 for Mac Which shall be comprised of Flix Lite 3 for Mac with the addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. Delivery within 150 days. o Flix Lite 5 for Mac Demo Which shall be comprised of Flix Lite 3 for Mac Demo with the On2 branding and addition of the new On2 Flash 8 codec. Update help file. Change branding from Wildform to On2. . Delivery within 150 days. Aside from the addition of the On2 Flash 8 codec, no other features shall be added to the above listed Deliverables. Delayed delivery by Wildform of the above listed Deliverables shall not be considered a violation of this Agreement, provided that Wildform has worked in good faith to provide the Deliverables in a timely fashion, provided however, that failure to deliver (a) the Flix Pro Windows Deliverables prior to the 91-day anniversary of delivery of the Flash 8 Materials to Wildform or (ii) all of the Deliverables prior to the 270-day anniversary of the delivery of the Flash 8 Materials to Wildform, shall be considered a violation of this Agreement.. It shall be On2's responsibility and On2 shall ensure that On2 has personnel capable of understanding, supporting and maintaining the software source code provided by Wildform pursuant to Deliverables #1 and #2.
"""

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

assistant: On2