Question: Which soft drink company originated in Mansfield, Ohio, Stewart's Fountain Classics or Buffalo Rock Company?

Context paragraphs:
Cheerwine: Cheerwine is a cherry-flavored soft drink produced by Carolina Beverage Corporation of Salisbury, North Carolina.  It has been produced since 1917, claiming to be "the oldest continuing soft drink company still run by the same family".

Lagidze water: Lagidze water (Georgian: ლაღიძის წყალი ) is a popular Georgian soft drink based on soda and a variety of natural syrups.  It has been traditionally mixed in a glass from a soda fountain, but it is also available as a bottled soft drink in a range of flavors.  Some American food writers liken it to egg cream, but the authentic Georgian drink includes neither milk nor chocolate syrup.

Irn-Bru: Irn-Bru ( "iron brew") is a Scottish carbonated soft drink, often described as "Scotland's other national drink" (after whisky).  It is produced in Westfield, Cumbernauld, North Lanarkshire, by A.G. Barr of Glasgow, since moving out of their Parkhead factory in the mid-1990s, and at a second manufacturing site in Mansfield, Nottinghamshire, England.  In addition to being sold throughout the United Kingdom, Barr's Irn-Bru is available throughout the world and can usually be purchased where there is a significant community of people from Scotland.  Innovative and sometimes controversial marketing campaigns have kept it as the number one selling soft drink in Scotland, where it competes directly with global brands such as Coca-Cola and Pepsi.

Nichols plc: Nichols plc, based in Newton-le-Willows, Merseyside, England, is a company well known for its lead brand Vimto, a fruit flavoured cordial.  The company can trace its roots back to the invention of Vimto, by John Noel Nichols in 1908.  Today the company operates two types of businesses, firstly the sale of Vimto and other brands (such as Panda Pops, which Nichols acquired from Hall & Woodhouse in 2005) via supermarkets and associated outlets throughout the world and secondly its soft drink dispense operation in the UK.  The soft drink operation is handled under the name of Cabana and is the UK's largest independent supplier of dispensed soft drinks.  Due to its success of the Vimto soft drink, Nichols plc started selling Vimto chews and Vimto chew bars.

Fountain Fresh International: Fountain Fresh International is a defunct United States company that operated soft drink and water dispensers at retail locations.  Based in Salt Lake City, Utah, Fountain Fresh developed and marketed in-store, self-serve soft drink and pure drinking water beverage centers in the mid-1990s.

Buffalo Rock: Buffalo Rock Company is an independent Pepsi bottler based in Birmingham, Alabama.  It was founded in 1901.  In addition to bottling Pepsi products, the company produced Grapico in 1981, a grape-flavored soft drink, and a ginger ale under its own brand name.

Asahi Soft Drinks: Asahi Soft Drinks Co., Ltd (アサヒ飲料株式会社 , Asahi Inryō Kabushiki Kaisha ) is a soft drink company founded in 1982 and headquartered in the Azuma-bashi district of Sumida, Tokyo, Japan.  It is a subsidiary of Asahi Breweries.  The company sponsors the Asahi Soft Drinks Challengers, an American football team in the Japanese X-League, as well as a futsal team.

Marketing in schools: Marketing in schools is a widespread phenomenon in which schools sign contracts allowing certain businesses to conduct marketing activities in school facilities — primarily advertising.  For example, a school might allow only one brand of soft drink to be sold in vending machines on the campus; in return, the soft drink company would provide compensation to the school (frequently money, but it may provide other compensation as well, such as building new facilities or paying for school supplies).  The phrase usually refers to arrangements by elementary schools or high schools, rather than higher education; because this marketing is seen as targeting children, it is very controversial.  One example of this is Channel One News, a TV show, branded as educational, shown in schools that shows two minutes of advertising.  Channel One is shown in over 11,500 middle and high schools across the United States, reaching 7.7 million students.

Stewart's Restaurants: Stewart's Restaurants are classic 1950s style fast-food restaurants located throughout the United States.  Restaurants are branded as Stewart's Root Beer or Stewart's Drive-In or similar variations.  Started in 1924 in Mansfield, Ohio by Frank Stewart, the chain became a franchise in 1931.  Stewart's is famous for its Stewart's Fountain Classics root beer and hot dogs.  It has over 60 locations in the United States, 38 of them in New Jersey with the rest in Maryland, Missouri, Kentucky, Oklahoma, Ohio, West Virginia and Pennsylvania.

Stewart's Fountain Classics: Stewart's Fountain Classics are a brand of premium soft drinks made in the United States.  Stewart's are nostalgic "old fashioned" fountain sodas, having originated at the Stewart's Restaurants, a chain of root beer stands started in 1924 by Frank Stewart in Mansfield, Ohio.  In 1990, the bottling rights to Stewart's were acquired by the Cable Car Beverage Corporation.  Cream Soda and Ginger Beer flavors were introduced in 1992.  Other flavors have been added since then.  Cable Car Beverage Corporation, in November 1997, was purchased by Triarc.  Cadbury Schweppes PLC acquired the Stewart's brands in 2000 along with Snapple and Mistic Brands for $1.45 billion.

Supporting paragraphs: Stewart's Fountain Classics Buffalo Rock
Answer: Stewart's Fountain Classics