Question: Uncle Ben's was introduced by the company that was later bought by which global manufacturer?

full_context: Document 1: Forrest Mars Sr.: Forrest Edward Mars Sr. (March 21, 1904 – July 1, 1999) was an American businessman and the driving force of the Mars candy empire. He is best known for introducing Milky Way (1923) and Mars (1932) chocolate candy bars, and M&M's (1941) chocolate candy, as well as orchestrating the launch of Uncle Ben's Rice. He was the son of candy company Mars, Inc. founder Frank C. Mars and his first wife Ethel G. Mars (née Kissack).
Document 2: Nestlé Purina PetCare: Nestlé Purina Petcare is a St. Louis, Missouri-based subsidiary of Nestlé. It produces and markets pet food, treats and litter. Some of its pet food brands include Purina Pro Plan, Purina Dog Chow, Friskies, Beneful and Purina ONE. The company was formed in 2001 by combining Ralston Purina, which was acquired by Nestlé for $10.3 billion, with Nestlé's Friskies Petcare Company. As consumers became willing to spend more money on their pets, the company grew. As of 2012, it is the second-largest pet food company globally and the largest in the United States.
Document 3: Milky Way Farm: Milky Way Farm in Giles County, Tennessee, is the former estate of Franklin C. Mars, founder of Mars Candies. The property is named for the company's Milky Way candy bar. During the Great Depression, the estate was the largest employer in the county. The estate is listed on the National Register of Historic Places as an historic district; its manor house is now a venue for special events.
Document 4: Nestlé Bear Brand: Bear Brand is a powdered milk drink brand introduced in 1976, which was owned by Nestlé. It is available in most areas of Southeast Asia. Bear Brand is also marketed under the brand name Marca Oso, which is Spanish for "Bear Brand". The brand's Indonesian name is Susu Cap Beruang. Bear Brand is also a sterilized milk brand. In 2014, a consumer research firm ranked Bear Brand milk as No. 6 among the top 50 "most popular fast-moving consumer goods" in the Philippines.
Document 5: Parboiled rice: Parboiled rice (also called converted rice) is rice that has been partially boiled in the husk. The three basic steps of parboiling are soaking, steaming and drying. These steps also make rice easier to process by hand, boost its nutritional profile and change its texture. About 50% of the world’s paddy production is parboiled. The treatment is practiced in many parts of the world such as India, Bangladesh, Pakistan, Myanmar, Malaysia, Nepal, Sri Lanka, Guinea, South Africa, Italy, Spain, Nigeria, Thailand, Switzerland, USA and France.
Document 6: Mars Nederland: Mars Nederland (English: Mars Netherlands ) is the Dutch division of Mars, Incorporated, a privately held multi-national company in food, pet care products, and confectionery products. It has its headquarters and main production site in Veghel, North Brabant. A second production site is located in Oud-Beijerland, South Holland. The chocolate factory in Veghel is the largest production site owned by Mars, Incorporated, and is among the largest chocolate factories in the world.
Document 7: Forrest Mars Jr.: Forrest Edward Mars Jr. (August 16, 1931 – July 26, 2016) was an American heir. He was the eldest son of Audrey Ruth (Meyer) and Forrest Mars Sr., and the grandson of Frank C. Mars, the founder of Mars, Incorporated, the confectionery company. In March 2015, "Forbes" estimated his wealth to be $26.8 billion
Document 8: Franklin Clarence Mars: Franklin Clarence Mars ( ; September 24, 1882 – April 8, 1934), sometimes known as Frank C. Mars, was an American business magnate who founded the food company Mars, Incorporated, which mostly makes chocolate candy. Mars' son Forrest Edward Mars developed M&M's and the Mars bar.
Document 9: Uncle Ben's: Uncle Ben's is a brand name for parboiled rice and other related food products. The brand was introduced by Converted Rice Inc., which was later bought by Mars, Inc. It is based in Houston, Texas. Uncle Ben’s rice was first marketed in 1943 and was the top-selling rice in the United States from 1950 until the 1990s.
Document 10: Uncle Ben: Benjamin "Ben" Parker, usually called Uncle Ben, is a fictional character appearing in American comic books published by Marvel Comics, commonly in association with the superhero Spider-Man. Uncle Ben first appeared in "Amazing Fantasy" #15 (August 1962) and was created by writer Stan Lee and artist Steve Ditko. Modeled after American founding father Benjamin Franklin, the character plays an influential role in the Spider-Man comic books.
Document 11: 100% Bran: 100% Bran is a double milled wheat bran breakfast cereal originally manufactured by Nabisco. It was made by Kraft's Post brand from 1993, when Philip Morris (the owner of Kraft) acquired all Nabisco cereal products, until 2008. The Post brands were acquired from Kraft by Ralcorp Holdings, Inc., in a sale completed August 4, 2008. The cereal is a mixture of wheat bran formed into the shape of small sticks and oven toasted. One serving of this cereal is one-third of a US cup (237 milliliters). Its sugar content is about 26% in weight
Document 12: RiceTec: RiceTec Inc. is a private company based in Alvin, TX, and headquartered in Houston, TX, that develops and produces hybrid rice seed for the American and various international markets. RiceTec also owns the consumer brand name RiceSelect which markets Texmati brand rice in grocery stores throughout North America. The company was founded in 1990 as a foreign for profit corporation and is owned by the Prince of Liechtenstein Foundation. RiceTec was the first and is currently the only company to commercialize hybrid rice in the Americas.
Document 13: Pals Rice: Pals rice is a rice produced in Empordà and is sold under the name "Arroz de Pals". It is a top quality rice and is packaged in bottles. The well-known rice varieties that are cultivated in Pals include the traditional varieties of Bahia and Bomba, andthe new varieties Carneroli and Nembo. It is ideal for all types of dishes, especially for cooking rice on casseroles, typical dish ampurdanes that still the rice is not paste and remains under-cooked. Pals rice should adhere to the quality label "Productes de l'Empordà" (Emporda products). This mark guarantees that the products are produced, processed and packaged in the Emporda. Passing periodical quality control test. The sowing period extends from end of April to start of May, and the period of harvest from the end of September to the end of October.
Document 14: Cadbury: Cadbury, formerly Cadbury's, is a British multinational confectionery company wholly owned by Mondelez International (originally Kraft Foods) since 2010. It is the second-largest confectionery brand in the world after Wrigley's. Cadbury is internationally headquartered in Uxbridge, West London, and operates in more than 50 countries worldwide. It is famous for its Dairy Milk chocolate, the Creme Egg and Roses selection box, and many other confectionery products. One of the best-known British brands, in 2013 "The Daily Telegraph" named Cadbury among Britain's most successful exports.
Document 15: Mars, Incorporated: Mars is an American global manufacturer of confectionery, pet food, and other food products and a provider of animal care services, with US$33 billion in annual sales in 2015, and is ranked as the 6th largest privately held company in the United States by Forbes. Headquartered in McLean, unincorporated Fairfax County, Virginia, US, the company is entirely owned by the Mars family. Mars operates in six business segments around the world: Wm. Wrigley Jr. Company (Chicago, Illinois), Chocolate (Hackettstown, New Jersey; to be integrated with Wm. Wrigley Jr. Company and based in Chicago, Illinois from 2017), Petcare (Brussels, Belgium, Poncitlán and Jalisco, Mexico), Food (Rancho Dominguez, California), Drinks (West Chester, Pennsylvania), and Symbioscience (Germantown, Maryland), the company's life sciences division.
ground_truth: Mars