Q:Information: - In Great Britain, National Rail is the trading name licensed for use by the Rail Delivery Group, an unincorporated association whose membership consists of the passenger train operating companies (TOCs) of Great Britain that run the passenger services previously provided by the British Railways Board, from 1965 using the brand name British Rail. National Rail generally does not include services that do not have a BR history; this distinction is important because National Rail services share a ticketing structure and inter-availability that do not necessarily extend to other services. The name and the accompanying double arrow symbol are the intellectual property of the Secretary of State for Transport. - Harrisburg (Pennsylvania German: "Harrisbarig") is the capital city of the Commonwealth of Pennsylvania in the United States, and the county seat of Dauphin County. With a population of 49,673, it is the tenth-largest city in the Commonwealth. It lies on the east bank of the Susquehanna River, west of Philadelphia, north of Washington, D.C. and west of New York City. - A census is the procedure of systematically acquiring and recording information about the members of a given population. It is a regularly occurring and official count of a particular population. The term is used mostly in connection with national population and housing censuses; other common censuses include agriculture, business, and traffic censuses. The United Nations defines the essential features of population and housing censuses as "individual enumeration, universality within a defined territory, simultaneity and defined periodicity", and recommends that population censuses be taken at least every 10 years. United Nations recommendations also cover census topics to be collected, official definitions, classifications and other useful information to co-ordinate international practice. - The National Railroad Passenger Corporation, doing business as Amtrak , is a passenger railroad service that provides medium- and long-distance intercity service in the contiguous United States. Founded in 1971 to take over most of the remaining U.S. passenger rail services, it is partially government funded yet operated and managed as a for-profit corporation. - The Keystone Corridor is a 349-mile (562km) railroad corridor between Philadelphia and Pittsburgh, Pennsylvania that consists of two rail lines, the Amtrak Philadelphia to Harrisburg Main Line (which includes the Southeastern Pennsylvania Transportation Authority (SEPTA) Paoli/Thorndale Line commuter rail service) and the Norfolk Southern Pittsburgh Line. The corridor was originally a rail line itself as it was the Main Line of the Pennsylvania Railroad. - The contiguous United States consists of the 48 adjoining U.S. states plus Washington, D.C. (federal district), on the continent of North America. The term excludes the non-contiguous states of Alaska and Hawaii and all off-shore United States territories and possessions, which include American Samoa, Guam, the Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands. - Parkesburg is an Amtrak train station located between Lancaster and Philadelphia at West First Avenue and South Culvert Street in Parkesburg , Pennsylvania . It is served by most Amtrak Keystone Service trains . A station building exists at the stop , but is not currently used as a ticket office . The distance between Parkesburg and the next westbound station ( Lancaster ) is the longest distance between stations ( 23 miles ) anywhere along the Keystone Corridor . From circa 1914 through 1972 , Parkesburg Tower was located near the Atlantic Avenue bridge . The tower served as a communication / signalling point for westbound ( to Lancaster and beyond ) trains , and a routing location for eastbound trains entering the Main Line of the Pennsylvania Rail Road . A small service yard was also located nearby for both track service and to assist with sideling switching . Parkesburg Station once was the western-most stop for the SEPTA R5 commuter line ( now the Paoli / Thorndale Line ) . It was truncated to Downingtown in November 1996 because of the need for trains to deadhead to Lancaster to turn around . It has since been re-extended to Thorndale , a few miles west of Downingtown . In 1984 , the station appeared in the movie Witness . Filming took place over a three - day period , and devout fans of the film make annual pilgrimages to the station and other select stops each year . - The Northeast Corridor (NEC) is an electrified railway line in the Northeast megalopolis of the United States. Owned primarily by Amtrak, it runs from Boston through New York City, Philadelphia, and Baltimore to Washington, D.C.. The NEC closely parallels Interstate 95 for most of its length, and is the busiest passenger rail line in the United States by ridership and service frequency as of 2013. Branches to Harrisburg, Pennsylvania, and Springfield, Massachusetts, though not considered part of the Northeast Corridor, see frequent service from routes that run largely on the corridor. - Parkesburg is a borough in Chester County, Pennsylvania, United States. The population was 3,593 at the 2010 census. The ZIP code is 19365. - Pennsylvania (Pennsylvania German: "Pennsylvaani"), officially the Commonwealth of Pennsylvania, is a state located in the northeastern and Mid-Atlantic regions of the United States. The Appalachian Mountains run through its middle. The commonwealth borders Delaware to the southeast, Maryland to the south, West Virginia to the southwest, Ohio to the west, Lake Erie and the Canadian province of Ontario to the northwest, New York to the north, and New Jersey to the east. - The Harrisburg Transportation Center (formerly Pennsylvania Station, Harrisburg or Harrisburg Central Railroad Station) is a large railway station and transportation hub in Harrisburg, Pennsylvania. It is located on the eastern edge of Downtown Harrisburg between the intersections of Aberdeen and Market Streets and 4th and Chestnut Streets. The well-situated station is the primary hub for passenger rail and intercity bus services in the Harrisburg metropolitan area and South Central Pennsylvania. - Amtrak's 195-mile (314km) Keystone Service provides frequent higher speed passenger train service along the Amtrak owned Keystone Corridor between the Harrisburg Transportation Center in Harrisburg, Pennsylvania and 30th Street Station in Philadelphia. Most trains continue along the Northeast Corridor (NEC) to Pennsylvania Station in New York. Given the paragraphs above, decide what entity has the relation 'instance of' with 'railway station'.
A:
parkesburg station