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:
"""
a notice given in accordance with this Section 2): To the Buyer: Quaker Chemical Corporation One Quaker Park 901 E. Hector Street Conshohocken, PA 19428-2380 Facsimile: (610) 832-4496 E-mail: traubr@quakerchem.com Attention: Robert T. Traub with a copy (which shall not constitute notice) to: Drinker, Biddle & Reath LLP One Logan Square Suite 2000 Philadelphia, Pennsylvania 19103 Facsimile: (215) 988-2757 E-mail: Douglas.Raymond@dbr.com Attention: F. Douglas Raymond, III 4 If to any of the Sellers: Gulf Houghton Lubricants Ltd. Whitehall House, 238 North Church Street, P.O. Box 1043, George Town Grand Cayman KY1-1102 Cayman Islands Facsimile: (305) 675-2619 Email: Sandra@accla.im Attention: Sandra Georgeson with a copy (which shall not constitute notice) to: Mayer Brown LLP 1221 Avenue of the Americas New York, New York 10020 Facsimile: (212) 849-5914 E-mail: rwheeler@mayerbrown.com Attention: Reb D. Wheeler 3. Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the parties and their respective successors and permitted assigns; provided that this Agreement shall not be assignable or otherwise transferable by any party without the prior written consent of the other party (which consent shall not be unreasonably withheld or delayed) and any purported assignment or transfer without such consent shall be null and void. No assignment shall relieve the assigning party of any of its obligations hereunder. 4. Governing Law. (a) THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE INTERNAL LAWS OF THE COMMONWEALTH OF PENNSYLVANIA WITHOUT GIVING EFFECT TO ANY CHOICE OR CONFLICT OF LAW PROVISION OR RULE (WHETHER OF THE COMMONWEALTH OF PENNSYLVANIA OR ANY OTHER JURISDICTION). (b) ANY LEGAL SUIT, ACTION OR PROCEEDING ARISING OUT OF OR BASED UPON THIS AGREEMENT, THE OTHER TRANSACTION DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY MAY BE INSTITUTED IN THE FEDERAL COURTS OF THE UNITED STATES OF AMERICA OR THE COURTS OF THE COMMONWEALTH OF PENNSYLVANIA IN EACH CASE LOCATED IN THE CITY OF PHILADELPHIA AND COUNTY OF PHILADELPHIA, AND EACH PARTY IRREVOCABLY SUBMITS TO THE EXCLUSIVE JURISDICTION OF SUCH COURTS IN ANY SUCH SUIT, ACTION OR PROCEEDING. SERVICE OF PROCESS, SUMMONS, NOTICE OR OTHER DOCUMENT BY MAIL TO SUCH PARTY'S ADDRESS SET FORTH HEREIN SHALL BE EFFECTIVE SERVICE OF PROCESS FOR ANY SUIT, ACTION OR OTHER PROCEEDING BROUGHT IN ANY SUCH COURT. THE 5 PARTIES IRREVOCABLY AND UNCONDITIONALLY WAIVE ANY OBJECTION TO THE LAYING OF VENUE OF ANY SUIT, ACTION OR ANY PROCEEDING IN SUCH COURTS AND IRREVOCABLY WAIVE AND AGREE NOT TO PLEAD OR CLAIM IN ANY SUCH COURT THAT ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN ANY SUCH COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM. (c) EACH PARTY ACKNOWLEDGES AND AGREES THAT ANY CONTROVERSY WHICH MAY ARISE UNDER THIS AGREEMENT OR THE OTHER TRANSACTION DOCUMENTS IS LIKELY TO INVOLVE COMPLICATED AND DIFFICULT ISSUES AND, THEREFORE, EACH SUCH PARTY IRREVOCABLY AND UNCONDITIONALLY WAIVES ANY RIGHT IT MAY HAVE TO A TRIAL BY JURY IN RESPECT OF ANY LEGAL ACTION ARISING OUT OF OR RELATING TO THIS AGREEMENT, THE OTHER TRANSACTION DOCUMENTS OR THE TRANSACTIONS CONTEMPLATED HEREBY OR THEREBY. EACH PARTY TO THIS AGREEMENT CERTIFIES AND ACKNOWLEDGES THAT (A) NO REPRESENTATIVE OF ANY OTHER PARTY HAS REPRESENTED, EXPRESSLY OR OTHERWISE, THAT SUCH OTHER PARTY WOULD NOT SEEK TO ENFORCE THE FOREGOING WAIVER IN THE EVENT OF A LEGAL ACTION, (B) SUCH PARTY HAS CONSIDERED THE IMPLICATIONS OF THIS WAIVER, (C) SUCH PARTY MAKES THIS WAIVER VOLUNTARILY AND (D) SUCH PARTY HAS BEEN INDUCED TO ENTER INTO THIS AGREEMENT BY, AMONG OTHER THINGS, THE MUTUAL WAIVERS AND CERTIFICATIONS IN THIS SECTION 4(C) [Governing Law]. 5. Injunctive Relief; Attorneys Fees. Each Seller agrees that in the event of a breach of this Agreement, the damage to Buyer will be inestimable and that therefore any remedy at Law or in monetary damages shall be inadequate. Accordingly, the parties agree that Buyer shall, in addition to monetary damages incurred by reason of any such breach or potential breach, without the necessity of posting any bond or similar instrument (and Sellers hereby irrevocably waive any right it may have to require the obtaining, furnishing or posting of any such bond or similar instrument) be entitled to seek injunctive relief (including specific performance) against the Sellers for breach of this Agreement. If any action or proceeding shall be commenced to enforce this Agreement or any right arising in connection with this Agreement, the prevailing party in such action or proceeding shall be entitled to recover from the other party the reasonable attorneys' fees, costs and expenses incurred by such prevailing
"""

Extract the exact clause related to "Most Favored Nation" from the excerpt above.