Information: - Louisiana (or ; Louisiana Creole: "Leta de la Lwizyan") is a state located in the southern region of the United States. Louisiana is the 31st most extensive and the 25th most populous of the 50 United States. Its capital is Baton Rouge and largest city is New Orleans. Louisiana is the only state in the U.S. with political subdivisions termed parishes, which are the local government's equivalent to counties. The largest parish by population is East Baton Rouge Parish, and the largest by total area is Plaquemines. Louisiana is bordered by Arkansas to the north, Mississippi to the east, Texas to the west, and the Gulf of Mexico to the south. - New Orleans (or ) is a major United States port and the largest city and metropolitan area in the state of Louisiana. The population of the city was 343,829 as of the 2010 U.S. Census. The New Orleans metropolitan area (New OrleansMetairieKenner Metropolitan Statistical Area) had a population of 1,167,764 in 2010 and was the 46th largest in the United States. The New OrleansMetairieBogalusa Combined Statistical Area, a larger trading area, had a 2010 population of 1,452,502. - The Waterways Experiment Station, also known as WES-Original Cantonment in Vicksburg, Mississippi, is a sprawling complex built in 1930 as a United States Army Corps of Engineers research facility. Its campus is the site of the headquarters of the Engineer Research and Development Center (ERDC) of the Corps of Engineers. WES is the largest of the four Corps of Engineers' research and development laboratories. - Vicksburg is the only city and county seat of Warren County, Mississippi, United States. It is located northwest of New Orleans on the Mississippi and Yazoo rivers, and due west of Jackson, the state capital. It is located on the Mississippi River across from the state of Louisiana. - A city is a large and permanent human settlement. Although there is no agreement on how a city is distinguished from a town in general English language meanings, many cities have a particular administrative, legal, or historical status based on local law. - The United States Army Corps of Engineers (USACE), also sometimes shortened to CoE is a U.S. federal agency under the Department of Defense and a major Army command made up of some 37,000 civilian and military personnel, making it one of the world's largest public engineering, design, and construction management agencies. Although generally associated with dams, canals and flood protection in the United States, USACE is involved in a wide range of public works throughout the world. The Corps of Engineers provides outdoor recreation opportunities to the public, and provides 24% of U.S.hydropower capacity. - The Engineer Research and Development Center ( ERDC ) is a US Army Corps of Engineers ( USACE ) laboratory organization whose mission is to '' Provide science , technology , and expertise in engineering and environmental sciences in support of our Armed Forces and the Nation to make the world safer and better . '' The headquarters is located in Vicksburg , Mississippi , on the site of an antecedent organization , the Waterways Experiment Station . - A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is used in the United States, Canada, Romania, China and Taiwan. In the United Kingdom and Ireland, county towns have a similar function. - The Mississippi River is the chief river of the largest drainage system on the North American continent. Flowing entirely in the United States (although its drainage basin reaches into Canada), it rises in northern Minnesota and meanders slowly southwards for to the Mississippi River Delta at the Gulf of Mexico. With its many tributaries, the Mississippi's watershed drains all or parts of 31 U.S. states and 2 Canadian provinces between the Rocky and Appalachian Mountains. The Mississippi ranks as the fourth longest and fifteenth largest river in the world by discharge. The river either borders or passes through the states of Minnesota, Wisconsin, Iowa, Illinois, Missouri, Kentucky, Tennessee, Arkansas, Mississippi, and Louisiana. - Mississippi is a state in the southern region of the United States, with part of its southern border formed by the Gulf of Mexico. Its western border is formed by the Mississippi River. Given the paragraphs above, decide what entity has the relation 'part of' with 'united states army corps of engineers'.
Answer:
engineer research and development center