Question: Baker's Chocolate is a brand name owned by the company formed by a merger in what year?

full_context: Document 1: 3G Capital: 3G Capital is an American/Brazilian multibillion-dollar investment firm, founded in 2004 by principals Jorge Paulo Lemann, Carlos Alberto Sicupira, Marcel Herrmann Telles and Roberto Thompson Motta. The firm is best known for partnering up with Berkshire Hathaway for its acquisitions, including those of Burger King, Tim Hortons, Heinz and Kraft Foods.
Document 2: Old HB: Old HB, Inc., known as Hostess Brands from 2009 to 2013 and established in 1930 as Interstate Bakeries Corporation, was a wholesale baker and distributor of bakery products in the United States. Before its 2012 closure and liquidation, it owned the Hostess, Wonder Bread, Nature's Pride, Dolly Madison, Butternut Breads, and Drake's brands.
Document 3: Milka: Milka is a brand of chocolate confection which originated in Switzerland in 1901 and has been manufactured internationally by the US confectionery company Mondelēz International (formerly known as Kraft Foods) since 1990. For more than 100 years Milka has been primarily produced in Lörrach, Germany, producing about 140,000 tonnes of chocolate in 2012. It is sold in bars and a number of novelty shapes for Easter and Christmas. Milka also produces chocolate-covered cookies and biscuits.
Document 4: Bernardo Hees: Bernardo Vieira Hees is a Brazilian economist and businessman. He has been the chief executive officer (CEO) of H. J. Heinz Company since June 10, 2013. He previously served as CEO of Burger King Corporation and America Latina Logistica, Latin America's largest railroad and logistics company. Hees is also a partner in the global investment firm 3G Capital.
Document 5: 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 6: Beatrice Foods: Beatrice Foods Company was a major American food processing company. In 1987, its smaller international food operations were sold to Reginald Lewis, a corporate attorney, creating TLC Beatrice International, after which the majority of its domestic (U.S.) brands and assets were acquired by Kohlberg, Kravis, Roberts (KKR), with the bulk of its holdings sold off. By 1990, the remaining operations were ultimately acquired by ConAgra Foods.
Document 7: Baker's Chocolate: Baker's Chocolate is a brand name for the line of baking chocolates owned by the Kraft Heinz Company (formerly Kraft Foods). Products include a variety of bulk chocolates, including white and unsweetened, and sweetened coconut flakes. It is one of the largest national brands of chocolate in the United States. The company was originally named Walter Baker & Company.
Document 8: Kraft Heinz: The Kraft Heinz Company is an American food company formed by the merger of Kraft Foods Group and Heinz in 2015. The merger was backed by 3G Capital and Berkshire Hathaway, which invested US$10 billion in the deal, making Kraft Heinz worth about US$46 billion. In 2015, the Kraft Heinz Company had 13 different brands with $500 million or more each in annual sales.
Document 9: Berkshire Hathaway: Berkshire Hathaway Inc. is an American multinational conglomerate holding company headquartered in Omaha, Nebraska, United States. The company wholly owns GEICO, Long & Foster, BNSF Railway, Lubrizol, Fruit of the Loom, Helzberg Diamonds, FlightSafety International, Pampered Chef, and NetJets, and also owns 26.7% of the Kraft Heinz Company, and significant minority holdings in American Express (17.15%), The Coca-Cola Company (9.4%), Wells Fargo (9.9%), IBM (6.9%) and Apple (2.5%). Since 2016, the company has acquired large holdings in the major US airline carriers and is currently the largest shareholder in United Airlines and Delta Air Lines and a top 3 shareholder in Southwest Airlines and American Airlines. Berkshire Hathaway has averaged an annual growth in book value of 19.0% to its shareholders since 1965 (compared to 9.7% from the S&P 500 with dividends included for the same period), while employing large amounts of capital, and minimal debt.
Document 10: Kraft Group: The Kraft Group, LLC, is a group of privately held companies in the professional sports, manufacturing, and real estate development industries doing business in 90 countries. Founded in 1998 by American businessman Robert Kraft as a holding company, it is based in Foxborough, Massachusetts and comprises the following companies:
Document 11: Kraft Foods Inc: Kraft Foods Inc. was an American multinational confectionery, food and beverage conglomerate. It marketed many brands in more than 170 countries. 12 of its brands annually earned more than $1 billion worldwide: Cadbury, Jacobs, Kraft, LU, Maxwell House, Milka, Nabisco, Oreo, Oscar Mayer, Philadelphia, Trident, Tang. Forty of its brands are at least a century old.
Document 12: Heinz: The H. J. Heinz Company, or Heinz, was an American food processing company with world headquarters in Pittsburgh, Pennsylvania. It was founded by Henry John Heinz in 1869. The H. J. Heinz Company manufactures thousands of food products in plants on six continents, and markets these products in more than 200 countries and territories. The company claims to have 150 number-one or number-two brands worldwide. Heinz ranked first in ketchup in the US with a market share in excess of 50%; Ore-Ida label held 46% of the frozen potato sector in 2003.
Document 13: Walter Baker &amp; Company: The Baker Chocolate Company is the oldest producer of chocolate in the United States. The company was established when a physician named Dr. James Baker met John Hannon on the banks of the Neponset River. Irishman John Hannon was penniless but was a skilled chocolatier, a craft which he had learned in England and which was, until now, exclusive to Europe. With the help of Baker, Hannon was able to set up a business where he produced “Hannon’s Best Chocolate” for 15 years. In 1779, Hannon went on a trip to the West Indies and never returned. His wife sold the company in 1780 to Dr. Baker who changed the name to Baker Chocolate Company. The Baker's Chocolate brand now belongs to Mondelez International.
Document 14: Restaurant Brands International: Restaurant Brands International is a Canadian multinational fast food company. Formed in 2014 by the $12.5 billion merger between American fast food restaurant chain Burger King and the Canadian coffee shop and restaurant chain Tim Hortons, and expanded by the 2017 purchase of Louisiana-based and themed Popeyes Louisiana Kitchen, the company is the third-largest operator of fast food restaurants in the world. The company is based alongside Tim Hortons in Oakville, Ontario, but both chains retain their existing operations and headquarters in Oakville and Miami respectively. The merger focused primarily on expanding the international reach of the Tim Hortons brand, and providing financial efficiencies for both companies.
Document 15: Continental Baking Company: The Continental Baking Company was one of the first bakeries to introduce fortified bread. It was the maker of the Twinkie and Wonder Bread.
ground_truth: 2015