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:
"""
Exhibit 10.13 Outsourcing Contract on Development of Miaoli Royal Resort Hotel Planning Unit: Chang Chen-Bin Architects Office October 29, 2015 Source: IMPERIAL GARDEN & RESORT, INC., DRS (on F-1), 10/28/2016 Outsourcing Contract on Development of Miaoli Royal Resort Hotel The Covenanter: The HUANG JIA Country CLUB and Recreation Inc. (hereinafter referred to as Party A) and the Covenanter: Chang Chen- Bin Architects Office (hereinafter referred to as Party B) hereby agree to establish the following terms and conditions with regard to the development of Miaoli Royal Resort Hotel: Article I. Outsourced Project Development of Miaoli Royal Resort Hotel Article II. Project Range The base of the project is located on Lot No. 19 and so on in the Section of Laotianliao, Touwu Township, Miaoli County (refer to the attached map for more details) with an area about 29 hectares. Article III. Outsourced Work Outsourced work regarding this Contract is stated below: Part I: Establishment of Architectural Development Plan and Business Plan I. Establishment of documents and drawing relevant to the Architectural Development Plan and Business Plan II. Attendance of Concerned Work Coordination Meeting 1. Attendance of relevant review meetings and presentations 2. Reply to relevant consultations and revision of the development plan Part II: Development of Soil and Water Conservation Plan I. Establishment of documents and drawing relevant to the soil and water conservation plan. 1. Trunk sewer, calculation on water control and treatment and relevant design drawings. 2. Design of disasters prevention facilities during construction. 3. Design of desilting and detention basin. 4. Designs and drawings relevant to soil and water conservation. II. Attendance of Concerned Work Coordination Meeting 1. Attendance of review meetings and presentations 2. Reply to relevant consultations and revision of scheme drawings associated with soil and water conservation. III. Signing & Verification of Technicians Signing and verification relevant to land preparation and water discharge of the project. Source: IMPERIAL GARDEN & RESORT, INC., DRS (on F-1), 10/28/2016 Part III: Environmental Impact Assessment Report I. Program on runoff of Waste Water And Pollution Reduction on the Construction Site. II. Implementation Plan for Environmental Protection. III. Environmental Monitoring (Monitoring Report prior to Environmental Impact Assessment) IV. Establishment of Environmental Impact Statement And Assessment Report Part IV: Establishment of Documents Relevant to Change of Land Usage (I) Establishment of Documents and Drawings Relevant to Change of Land Usage. (II). Attendance of Concerned Work Coordination Meeting 1. Attendance of relevant review meetings and presentations. 2. Reply to relevant consultations and plan revision. Part V: Establishment of Documents and Drawings Relevant to Landscaping I. Principles, Concepts and Calculations on Landscaping II. Planting Scheme & Relevant Design Drawings III. Calculations & Drawings on Green Cover Rate Part VI: Planning, Design and Monitoring on Miscellaneous Works I. Basic Design. II. Establishment of Documents & Drawings Relevant to Miscellaneous Works 1. Trunk sewer, calculation on water control and treatment and relevant design drawings 2. Design of disasters prevention facilities during construction 3. Design of desilting and detention basin 4. Designs and drawings relevant to miscellaneous works III. Attendance of Miscellaneous Works Review Meetings 1. Attendance of project review meetings and presentations 2. Reply to relevant consultations and revision of relevant documents and drawings. IV. Signing & Verification of Technicians and Architects Signing & Verification of Miscellaneous Works Relevant to the Project (including signing and verification of geological technicians) V. Construction Monitoring VI. Submitting documents for obtaining miscellaneous license, providing structural design and signing and verification relevant to the miscellaneous works. Part VII: Planning and Design of Relevant Buildings and Construction Monitoring I. Planning & Design of Relevant Buildings. Source: IMPERIAL GARDEN & RESORT, INC., DRS (on F-1), 10/28/2016 II. Coordination on geological drilling and survey and arrangement of building structure, sewage treatment, water and electricity utility, fire protection, telecommunications and electrical and mechanical systems etc. for various professional technicians pursuant to relevant laws and regulations. III. Construction Drawings (involving building structure, interior decoration, water supply and drainage and electricity, telecommunication, monitoring, fire protection and air conditioning system). IV. Assistance in Works Quantity Counting & Valuation. V. Submitting of Construction License and Structure, Water, Electricity and Fire Protection Design for Reviewing, Signing and Verification. VI. Monitoring on Major Construction Parts. VII. Construction Monitoring (Survey on Major Parts). VIII. Solving Any Disputes & Problems Relevant to the Construction. IX. Other Items Agreed by the Two Parties Herein. Article IV. Service Fee The fees for services mentioned in Part I to Part VI are NTD 12 million ((SAY TWELVE MILLION ONLY) in total and the fees
"""

Extract the exact clause related to "Warranty Duration" from the excerpt above.

assistant: Not found.