In this task, you are given a set of context paragraphs, some supporting facts and an answer of a question. Your task is to generate question for given answer based on set of context paragraphs, supporting facts and an answer.
Q: Context_1 : Beer production in Australia has traditionally been dominated by regional producers. Since the 1980s there has been a steady stream of takeovers and amalgamations, and now the two major producers (who were once Australian owned) are Carlton & United Breweries (CUB) and Lion. In December 2011, CUB became a subsidiary of British multinational SABMiller (the then world second largest international brewing company) and in October 2016 CUB became 100% owned by Anheuser-Busch InBev (AB InBev) the world's largest brewing company based in Belgium. Since October 2009, Lion has been a subsidiary of Japanese brewer, Kirin Holdings Company Limited a brewing company established in 1885. The largest remaining Australian owned brewer is Coopers Brewery with a market share of about 4% of total beer volume sales in Australia. Context_2 : RJ Rockers Brewing Company is a beer brewing company based in Spartanburg, South Carolina, founded in 1997 by current owner/brewer, Mark R. Johnsen. The company is considered a microbrewery meaning it has an annual production of less than 15,000 barrels. Context_3 : Dogfish Head Brewery is a brewing company based in Milton, Delaware founded by Sam Calagione. It opened in 1995 and produces 262,000 barrels of beer annually. Dogfish Head has been a rapidly growing brewery it grew nearly 400% between 2003 and 2006. The brewery was featured prominently in the documentary "Beer Wars" and was the subject of the Discovery Channel series "Brew Masters", which premiered Sunday, November 21, 2010. The brewery takes its name from Dogfish Head, Maine where Calagione spent summers as a child. Context_4 : Falls City Brewing Company was based in Louisville, Kentucky, USA. The company operated from 1905 until 1978. After the company closed the Falls City brand was purchased by a group of investors who sold it in the late 1990s to the Pittsburgh Brewing Company who produced the brand until around 2007. The brand name "Falls City Beer" was revived in 2010, and a beer is contract brewed at Sand Creek Brewing Company for a Louisville computer software entrepreneur. Context_5 : Brew Masters is a television series that was run weekly on Discovery Channel starting on Sunday, November 21, 2010. The show focused on Sam Calagione, the founder and head of Dogfish Head Brewery in Milton, Delaware, and his staff as they searched the world for new, ancient, and imaginative inspirations for beers. Context_6 : Hudepohl Brewing Company is a brewery established in Cincinnati, Ohio in 1885 by founder Ludwig Hudepohl II. Hudepohl was the son of Bavarian immigrants and had worked in the surgical tool business before starting his brewery. Hudepohl combined with Schoenling Brewing Company in 1986. Today, the Hudepohl-Schoenling Brewing Company is a wholly owned subsidiary of Christian Moerlein Brewing Co.. Context_7 : The Agassiz Brewing Company was a Canadian brewing company, founded by former Fort Garry Brewing Company brewmaster Gary De Pape. The company was established in 1998 in Winnipeg, Manitoba and based there until 2010. It was named for the prehistoric glacial Lake Agassiz which once covered much of Manitoba. Agassiz beer was available in Manitoba, Saskatchewan, Ontario, and British Columbia. Context_8 : The Joseph Jossen House, also known as the World Trade Building, is a historic house in Mobile, Alabama, United States. The 2 -story, brick, Queen Annestyle structure was built in 1906 for Joseph Jossen. Jossen was the local agent for the F.W. Cook Brewing Company, a beer brewing company based out of Evansville, Indiana. The Mobile distribution branch was established by him at 19 South Commerce Street in 1884. Additionally, Jossen was involved in the general liquor trade. In later years the house was adapted for reuse as the local international trade center. During this period the front porch was infilled and a two-story stuccoed addition was added to the rear elevation. As of 2009, the building was occupied by a title insurance company. It was added to the National Register of Historic Places on May 29, 1992. Context_9 : The National Brewing Company was a beer brewing company based in Baltimore, Maryland. The National Brewing Company operated from 1872 until the late 1970s. At the end of the 1970s, the National Brewing Company was purchased and their breweries were shut down. However, National's two most prominent brands, National Bohemian Beer and Colt 45, were kept alive and are now brewed in Wisconsin. Context_10 : Baderbrau is a Czech-style pilsner beer first brewed in 1988 by the Pavichevich Brewing Company based in Elmhurst, Illinois. After Pavichevich Brewing declared bankruptcy in 1997, Goose Island took over production of the beer until 2002. Acquisition of the Baderbrau trademark in 2010 by entrepreneur Rob Sama led to the creation of the Baderbrau Brewing Company, which resumed brewing of the Baderbrau pilsner. fact_1 : The show focused on Sam Calagione, the founder and head of Dogfish Head Brewery in Milton, Delaware, and his staff as they searched the world for new, ancient, and imaginative inspirations for beers. fact_2 : Dogfish Head Brewery is a brewing company based in Milton, Delaware founded by Sam Calagione. Answer: Sam Calagione
A:
Who is the founder and head of brewing company based in Milton, Delaware?