Question: In which country is Walnut Corner, a city in the same county as Whitewater and the state with the highest rice production in the U.S.?

full_context: Document 1: Wheatland, Montana: Wheatland is a census-designated place (CDP) in Broadwater County, Montana, United States. The population was 568 according to the 2010 census.
Document 2: Walnut Corner, Phillips County, Arkansas: Walnut Corner is an unincorporated community in Phillips County, Arkansas, United States. Walnut Corner is located at the junction of U.S. Route 49, Arkansas Highway 1, and Arkansas Highway 85, south-southwest of Lexa.
Document 3: Wabash, Arkansas: Wabash is an unincorporated community in Phillips County, Arkansas, United States. Wabash is located on Arkansas Highway 44, south-southwest of Lake View. Wabash has a post office with ZIP code 72389.
Document 4: Corn production in the United States: Iowa, the largest producer of corn in the US, grows three times as much corn as Mexico. Iowa harvested 3,548 acres (1,436 ha) of sweet corn in 2007. In 2011, the state had 92,300 corn farms on 30,700,000 acres (12,400,000 ha), the average size being 333 acres (135 ha), and the average dollar value per acre being US $6,708. In the same year, there were 13.7 million harvested acres of corn for grain, producing 2.36 billion bushels, which yielded 172.0 bu / acre, with US $14.5 billion of corn value of production. Almost 1.88 billion bushels of corn were grown in the state in 2012 on 13.7 million acres of land, while the 2013 projections are 2.45 billion bushels of corn on 13.97 million acres of land.
Document 5: Cotton production in the United States: Texas produces more cotton than any other state in the United States. With eight production regions around Texas, and only four geographic regions, it is the state's leading cash crop. Texas produces approximately 25% of the country's cotton crop on more than 6 million acres, the equivalent of over 9,000 square miles (23,000 km) of cotton fields. Texas Cotton Producers includes nine certified cotton grower organizations; it addresses national and statewide cotton grower issues, such as the national farm bill and environmental legislation.
Document 6: Myanmar: The major agricultural product is rice, which covers about 60% of the country's total cultivated land area. Rice accounts for 97% of total food grain production by weight. Through collaboration with the International Rice Research Institute 52 modern rice varieties were released in the country between 1966 and 1997, helping increase national rice production to 14 million tons in 1987 and to 19 million tons in 1996. By 1988, modern varieties were planted on half of the country's ricelands, including 98 percent of the irrigated areas. In 2008 rice production was estimated at 50 million tons.
Document 7: Whitewater Ski Resort: Whitewater Ski Resort is a ski resort located a 25-minute drive from Nelson in southern British Columbia, Canada. The resort is situated in Ymir bowl, beneath the high Ymir Mountain, in the Selkirk Mountains. The Selkirks receive plentiful, dry snow, and the location in a high alpine bowl provides an annual snowfall average of approximately . The elevation of the parking lot is and the highest lift accessed point is . While Ymir Peak is not included within the ski area boundary, lifts climb both shoulders of the bowl and provide easy traverse routes along ridges to the top. In addition to its snow, the resort is renowned for its tree skiing and steep runs; only 20% of the runs are beginner, while 40% are intermediate and the remaining 40% are advanced. Areas surrounding Whitewater, including West Arm Provincial Park, are renowned for easy access for backcountry split boarding and ski touring.
Document 8: Whitewater, Montana: Whitewater is a census-designated place and unincorporated community in Phillips County, Montana, United States. Its population was 64 as of the 2010 census. Whitewater has a post office with ZIP code 59544.
Document 9: Stillwater River (Stillwater County, Montana): The Stillwater River is a tributary of the Yellowstone River. Approximately 70 miles (113 km) long, it runs through southern Montana in the United States.
Document 10: Montana: Montana has 56 counties with the United States Census Bureau stating Montana's contains 364 "places", broken down into 129 incorporated places and 235 census-designated places. Incorporated places consist of 52 cities, 75 towns, and two consolidated city-counties. Montana has one city, Billings, with a population over 100,000; and two cities with populations over 50,000, Missoula and Great Falls. These three communities are considered the centers of Montana's three Metropolitan Statistical Areas.
Document 11: Rice production in the United States: Rice production is important to the economy of the United States. Of the country's row crop farms, rice farms are the most capital - intensive, and have the highest national land rental rate average. In the US, all rice acreage requires irrigation. In 2000 - 09 approximately 3.1 million acres in the US were under rice production, while an increase is expected in the next decade to approximately 3.3 million acres. US Rice represents rice producers in the six largest rice - producing states of Arkansas (The nations's number one rice producer.), California, Louisiana, Mississippi, Missouri, and Texas.
Document 12: Rice Belt: The Rice Belt of the United States includes Arkansas, Louisiana, Mississippi and Texas, four southern U.S. states that grow a significant portion of the nation's rice crop. The name is in conformity with the Corn Belt of the Midwest, in which much of the nation's corn is grown.
Document 13: Four Corners, Contra Costa County, California: Four Corners is an unincorporated community in Contra Costa County, California, United States. It is located north-northeast of Walnut Creek, at an elevation of 49 feet (15 m).
Document 14: Poplar Corner, Arkansas: Poplar Corner is an unincorporated community in Mississippi County, Arkansas, United States. Poplar Corner is located at the junction of Arkansas highways 77 and 119, north of Manila.
Document 15: National Register of Historic Places listings in Phillips County, Arkansas: This is intended to be a complete list of the properties and districts on the National Register of Historic Places in Phillips County, Arkansas, United States. The locations of National Register properties and districts for which the latitude and longitude coordinates are included below, may be seen in a map.
ground_truth: U.S.
sub_queries: Whitewater >> located in the administrative territorial entity Answer: Phillips County
what state produces the most rice in the us Answer: Arkansas
Walnut Corner, Phillips County , #2 >> country Answer: U.S.