Question: The fair that features organic food in Unity, Maine takes place in which county? 

full_context: Document 1: York, Maine: York is a town in York County, Maine, United States, near the southern tip of the state. The population in the 2010 census was 12,529. Situated beside the Atlantic Ocean on the Gulf of Maine, York is a well-known summer resort town. It is home to three 18-hole golf clubs, four sandy beaches, and Mount Agamenticus. It includes the villages of York Village, York Harbor, York Beach and Cape Neddick.
Document 2: Cumberland County, Maine: Cumberland County is a county located in the state of Maine, in the United States. As of the 2010 census, the population was 281,674, making it the most populous county in Maine. Its county seat is Portland. Cumberland County was founded in 1760 from a portion of York County, Massachusetts and named for William, Duke of Cumberland, a son of King George II.
Document 3: BioFach: BioFach is the world's largest trade fair for organic food and agriculture. It is held each year in the month of February, in Nuremberg, Germany. It brings together 2774 exhibitors and approximately 46700 trade visitors from around 130 countries.
Document 4: Kentucky State Fair: The Kentucky State Fair is the official state fair of Kentucky which takes place at the Kentucky Exposition Center in Louisville. More than 600,000 fairgoers fill the 520 acre of indoor and outdoor exhibits; activities include sampling a wide variety of food and riding several roller coasters during the 11-day event. The Kentucky State Fair includes competitions in crafts such as quilt-making, homebrew beers, and home-made pastries, as well as fine arts and agricultural competitions. Exhibitor spaces are available and are popular with area and regional businesses.
Document 5: Biddeford, Maine: Biddeford is a city in York County, Maine, United States. It is the principal commercial center of York County. The population was 21,277 at the 2010 census. Twin city of Saco, Biddeford includes the resort community of Biddeford Pool, Fortunes Rocks and Granite Point. The town is the site of the University of New England and the annual La Kermesse Franco-Americaine Festival. First visited by Europeans in 1616, it is the site of one of the earliest European settlements in the United States.
Document 6: North Country Community College: North Country Community College is a two-year college of the State University of New York located in Upstate New York. Founded in 1967, the main campus is in Saranac Lake, New York, and serves Franklin and Essex Counties; enrollment is approximately 1500 students. It employs 143 permanent and 300 adjunct faculty. North Country is the only public college located within the Adirondack Park. The College, located in New York's North Country Region, has additional locations in Malone and Ticonderoga. In August 2010, North Country Community College was ranked Best Community College in New York and 22nd among the Best Community Colleges in the United States by "Washington Monthly". The college has also been ranked one of the Top 50 fastest growing community colleges in the United States in "Community College Week Magazine", 101 Best for Vets Colleges in the United States by "Military Times" and a Top 15% Military Friendly Colleges in the U.S., by gijobs.com.
Document 7: Maine Organic Farmers and Gardeners Association: The Maine Organic Farmers and Gardeners Association (MOFGA) certifies organic food and products throughout the State of Maine. It is a voluntary organization whose office is located in Unity, Maine. As of 2016, MOFGA certifies 480 producers and growers.
Document 8: Meadowlands State Fair: The State Fair Meadowlands (formerly the Meadowlands Fair) is a carnival held every summer at the Meadowlands Sports Complex in East Rutherford, New Jersey. It derives its name from State Fair Stores, which run the carnival. It should also not be confused with the New Jersey State Fair, Sussex County Farm and Horse Show in Augusta, New Jersey. The fair is held in the parking lot that surrounds the MetLife Stadium and runs for two weeks in late June and early July. It attracts over 300,000 visitors per year.Michael Moore has been spotted at this fair while wearing his Rutgers hat.
Document 9: United School District (Pennsylvania): United School District is a small, rural public school district headquartered in East Wheatfield Township, Indiana County, Pennsylvania, United States. The United School District encompasses approximately 131 sqmi . The district serves the borough of Armagh and the townships of Brush Valley, Buffington, East Wheatfield, and West Wheatfield. According to 2000 federal census data, United School District served a resident population of 8,269. By 2010, the district's population declined to 7,988 people. The educational attainment levels for the School District population (25 years old and over) were 82.9% high school graduates and 10.9% college graduates. The district is one of the 500 public school districts of Pennsylvania.
Document 10: Weavers Way Co-op: Weavers Way Co-op is a member-owned consumers' cooperative with stores open to everyone, based in Northwest Philadelphia. Founded in 1973 as a neighborhood food buying club in a church basement in Philadelphia's West Mt. Airy section, Weavers Way has grown to more than 5,200 member households, with annual sales of nearly $20 million. After moving to its location at 559 Carpenter Lane, Weavers Way expanded, purchasing the adjacent building and consolidating the two buildings. Subsequent expansions included the purchase of other buildings in the neighborhood, which house a pet supply store, health and wellness store and offices. In 2010, Weavers Way underwent a major expansion, adding a second grocery store in Chestnut Hill, at 8424 Germantown Ave., at the former Caruso's grocery store site. Then, in 2013, Weavers Way opened a health and beauty specialty store, also in Chestnut Hill. For several years, Weavers Way also ran a smaller store in the West Oak Lane section of Philadelphia, but that closed in September 2011. The Co-op rents warehouse space in the SHARE food pantry complex in the Nicetown neighborhood. Two farm operations comprise 5.5 acres, one at Awbury Arboretum in Germantown and one on the grounds of Saul Agricultural High School in Roxborough. Weavers Way has participated in such events and organizations as Mt. Airy Day, Mt. Airy ArtJam, Mt. Airy YouthWorks, Mt. Airy Business Association, Mt. Airy USA (MAUSA), Mt. Airy Village Fair, Chestnut Hill's Fall for the Arts Festival and the XPoNential Music Fest.
Document 11: Oregon State Fair: The Oregon State Fair is the official state fair of the U.S. state of Oregon. It takes place every August–September at the 185 acre Oregon State Fairgrounds located in north Salem, the state capital, as it has almost every year since 1862. In 2006, responsibility for running the fair was delegated to the Oregon State Parks and Recreation Department, and the division is now known as the Oregon State Fair & Exposition Center (OSFEC), which holds events on the fairgrounds year-round.
Document 12: Unity, Maine: Unity is a town in Waldo County, Maine, United States. The population was 2,099 at the 2010 census. The town is the service center for the northern portion of Waldo County. Outside of Waldo county, it is best known as the home of the Maine Organic Farmers and Gardeners Association, its Common Ground Country Fair and Unity College. Unity College was founded in 1965 to offset the economic effects of the declining chicken farming industry. As of 2007, the college is the town's largest employer.
Document 13: Gorham, Maine: Gorham is a town in Cumberland County, Maine, United States. The population was 16,381 at the 2010 census. The 2012 estimate of Gorham's population was 16,667. In addition to its urban village center known as Gorham Village or simply "the Village," the town encompasses a number of smaller, unincorporated villages and hamlets with distinct historical identities, including South Gorham, West Gorham, Little Falls, White Rock, and North Gorham. Gorham is home to one of the three campuses of the University of Southern Maine. In 2013, Gorham was voted second best town in Maine after Hampden by a financial website.
Document 14: Common Ground Country Fair: The Common Ground Country Fair is a fair in Unity, Maine sponsored by the Maine Organic Farmers and Gardeners Association (MOFGA). The fair began in 1977 in Litchfield, Maine. In 1981, it moved to Windsor, Maine and in 1996, MOFGA purchased 200 acres in Unity, Maine, where the fair now takes places yearly. The fair "celebrates organic living, farming and growing," and all the food sold at the event must be organic. The fair regularly hosts 50,000 to 60,000 people.
Document 15: Minnesota State Fair: The Minnesota State Fair is the state fair of the U.S. state of Minnesota. Its slogan is "The Great Minnesota Get-Together." It is the largest state fair in the United States by average daily attendance. It is also the second-largest state fair in the United States by total attendance, trailing only the State Fair of Texas, which generally runs twice as long as the Minnesota State Fair. The state fairgrounds, adjoining the Saint Paul campus of the University of Minnesota, are in Falcon Heights, Minnesota, midway between the state's capital city of St. Paul and its largest city, Minneapolis, near the Como Park and Saint Anthony Park neighborhoods of Saint Paul. Residents of the state and region come to the fair to be entertained, exhibit their best livestock, show off their abilities in a variety of fields including art and cooking, learn about new products and services, and enjoy many different types of food—often on a stick. The fair runs for twelve days from late August into early September, ending on Labor Day. The Minnesota State Fair was named the best state fair in the United States in 2015 by readers of USA Today.
ground_truth: Waldo County