Question: What Swiss agribusiness is a client of Martin Williams Advertising?

full_context: Document 1: BASF Plant Science: BASF Plant Science is a subsidiary of BASF in which all plant biotechnology activities are consolidated. The GmbH was founded in 1998 and employs approximately 700 people at 6 different locations worldwide. The headquarters of BASF Plant Science is located in Research Triangle Park (North Carolina, USA). Plant Science has research sites in the US, Canada and Europe. At these locations the company is mainly developing genetically modified seeds.
Document 2: Ameropa Holding: Ameropa Holding is a Swiss agribusiness, headquartered in Binningen, Switzerland, that engages in the global distribution of fertilizers and grains. The company was founded in 1948 by Arthur Zivy and his son, Felix Zivy. Andreas Zivy is the chairman of the company. It has operations in over 30 countries across all continents.
Document 3: Proposed merger of Publicis and Omnicom: The proposed merger of Publicis and Omnicom was a proposed advertising industry merger between Publicis and Omnicom, announced on July 28, 2013. The resulting company would have been called Publicis Omnicom Group, and would been the world's biggest advertising group with market capitalisation of $35.1 billion, pro-forma revenue of $22.7 billion, and more than 130,000 employees across the world. After the merger, Publicis Omnicom and WPP would have been the largest advertising groups in the world., followed at a distance by Dentsu and Interpublic Group of Companies. The Publicis and Omnicom chief executives heralded the proposed operation as a "merger of equals" saying that Publicis and Omnicom shareholders will each hold about 50 percent of the new group's equity. The group would have had head offices in Paris and New York.
Document 4: UBS: UBS AG is a Swiss global financial services company, incorporated in the Canton of Zurich, and co-headquartered in Zürich and Basel. The company provides wealth management, asset management, and investment banking services for private, corporate, and institutional clients worldwide, and is generally considered to be a bulge bracket bank. In Switzerland, these services are also offered to retail clients. The name "UBS" was originally an abbreviation for the Union Bank of Switzerland, but it ceased to be a representational abbreviation after the bank's merger with the Swiss Bank Corporation in 1998. The company traces its origins to 1856, when the earliest of its predecessor banks was founded.
Document 5: GroupM: GroupM is the world’s largest advertising media company in terms of billings, also commonly known as "The Big One". It is headquartered in New York City with over 24,000 employees and 400 global offices in 81 countries. GroupM was formed in 2003 by WPP Group to serve as the parent company of WPP's media agencies including Maxus, MEC, MediaCom, Mindshare, QUISMA, Xaxis, Outrider, Catalyst, Quasar, IEG, Movent, Vocanic, Essence Digital Inc, and Plista. It handles over 32% of the world's media billings making it the world's largest media investment management operation. Kelly Clark is Global CEO of GroupM and manages the worldwide operations including the management of GroupM’s agencies worldwide. Irwin Gotlieb is Chairman of GroupM and focuses on the overall strategic direction of GroupM.
Document 6: LafargeHolcim: LafargeHolcim is a manufacturer of building materials (primarily cement, aggregates and concrete) which claims to be the largest in the world, with a presence in 90 countries and 115,000 employees. It was formed by the merger on 10 July 2015 of cement companies Holcim and Lafarge which had combined net sales of CHF 33 billion (EUR 27 billion) in 2014. The new company has a manufacturing capacity of 368.5 million tons a year.
Document 7: Omnicom Group: Omnicom Group, Inc. is an American global marketing and corporate communications holding company, headquartered in New York City.
Document 8: Matomy Media: Matomy Media Group Ltd. (, ) a publicly traded company since July 2014, is an international digital marketing company providing advertisers, agencies, publishers and application developers with a wide range of performance-based and programmatic advertising solutions. The company was incorporated in 2006 and launched in 2007 as AdsMarket. Clients include HSBC, American Express and AT&T. The company was founded by current Matomy CEO Ofer Druker, Adi Orzel and Kfir Moyal, and is headquartered in Tel Aviv, Israel, with additional offices in Madrid, Mexico City, Berlin, Munich, London, Denver, Fort Lauderdale, Fla, New York City and San Francisco. The company employs more than 400 people, has a client base of 2,000-plus active customers and works with more than 26,000 registered media sources in 100 countries. The company has been a part of the IAB QAG Certified Network since 2011.
Document 9: IMC Global: IMC Global (also known as International Minerals and Chemical Corporation) was a mining and production company. It used to be listed on the S&P MidCap 400. It was founded in 1909 as International Agricultural Corporation. In 2004, IMC Global merged with Cargill, Inc.'s crop nutrition division to form The Mosaic Company, a crop nutrition company.
Document 10: Martin Williams Advertising: Martin Williams Advertising, Inc. is an advertising agency, based in Minneapolis, Minnesota. Since 1998, Martin Williams has been part of the Omnicom Group. Clients include Payless ShoeSource, Raymond James, Syngenta, Cargill, Marvin Windows, Simmons Bedding Company, and P.F. Chang.
Document 11: TBWA Worldwide: TBWA Worldwide is an international advertising agency whose main headquarters are in Midtown Manhattan, New York City, United States. The agency is a unit of Omnicom Group, the world's largest advertising agency holding company. It was founded in 1970 in Paris, France, by William G. Tragos (American, Management), Claude Bonnange (French, Marketing), Uli Wiesendanger (Swiss, Creation), and Paolo Ajroldi (Italian, Client Services). The first letter of each founder's name provided the initials for the new organization. They were purchased by the Omnicom Group in 1993.
Document 12: Syngenta: Syngenta AG is a global Swiss agribusiness that produces agrochemicals and seeds. As a biotechnology company, it conducts genomic research. It was formed in 2000 by the merger of Novartis Agribusiness and Zeneca Agrochemicals. s of 2014 Syngenta was the world’s largest crop chemical producer, strongest in Europe. s of 2009 it ranked third in seeds and biotechnology sales.
Document 13: Group O: Group O, Headquartered in Milan, Illinois, is one of the largest Hispanic-owned companies in the U.S. and a provider of managed products and services, specializing in Marketing Services, Print Management, Business Analytics, Decision Sciences, Business Process Outsourcing, Managed Services, Packaging, Supply Chain and Third-Party Logistics (3PL). Founded in 1974, Group O has grown to approximately 1,500 employees across 34 U.S. facilities. The company targets a broad range of industries, including: food and beverage, telecommunications, manufacturing, consumer packaged goods, financial services, pharmaceutical, health care, retail and technology. The company’s major clients include AT&T, Bristol-Myers Squibb, Caterpillar, Frito-Lay, Kraft Foods, Microsoft, PepsiCo, and Staples.
Document 14: Advertising agency: An advertising agency, often referred to as a creative agency, is a business dedicated to creating, planning, and handling advertising and sometimes other forms of promotion and marketing for its clients. An ad agency is generally independent from the client; it may be an internal department or agency that provides an outside point of view to the effort of selling the client's products or services, or an outside firm. An agency can also handle overall marketing and branding strategies promotions for its clients, which may include sales as well.
Document 15: Zen-Noh: ZEN-NOH (全農 , Zennō ) , National Federation of Agricultural Co-operative Associations (全国農業協同組合連合会 , Zenkoku Nōgyō Kyōdō Kumiai Rengōkai ) , is a federation of agricultural cooperatives in Japan. ZEN-NOH was formed in 1972 with the joining of the ZENHANREN group (National Marketing Federation of Agricultural Cooperative Associations) and the ZENKOREN group (National Purchasing Federation of Agricultural Cooperative Associations). ZEN-NOH consists of 1,173 agricultural cooperatives and federations that in 2004 had a combined revenue of $53.8 billion (USD). ZEN-NOH is involved in the marketing, tracking, and quality assurance of the products of its cooperatives. As of 2006, ZEN-NOH has declared that it will not participate in the research and development of genetically modified foods. ZEN-NOH is one of the world's largest importers of animal feeds and agricultural fertilizers. 70% of the sales of chemical fertilizers in Japan are handled by them. ZEN-NOH is also largely involved in the production of farming equipment, primarily tractors.
ground_truth: Syngenta