question:  Perryville is a passenger rail station on the southern part of an electrified railway line that closely paralles what road for most of its length?
answer: Interstate 95
context: Title: Isar Valley Railway
  Passage: The Isar River Valley Railway (German: "Isartalbahn" ) is a standard gauge and electrified railway in the German state of Bavaria.  Originally it was 51.1 km long, running from Munich South station to Bichl and was built from 1891 to 1898 in sections by the Lokalbahn AG company (LAG).  The section from Munich South to Wolfratshausen was classified as a main line, while the section from Wolfratshausen to Bichl was classified as a branch line.  In 1900, the LAG electrified the section from the "Isartalbahnhof" (the station for the Isar River Valley Railway in Munich) to Höllriegelskreuth for suburban services at 580 volts DC.  In 1938, the LAG and, with it, the Isar Valley Railway were nationalised.  After the Second World War, Deutsche Bundesbahn converted the electrification to 15 kV AC (16 ⅔ Hz); this was completed in 1955 and extended to Wolfratshausen in 1960.  The northern section from Munich South to Grosshesselohe Isartal station and the southern section from Wolfratshausen to Bichl was closed by Deutsche Bundesbahn between 1959 and 1972.  The middle section is now used by line S 7 of the Munich S-Bahn.  The name of the line refers to the Isar as the northern half of the line follows the river’s western bank.  On the other hand, the southern section is located in the valley of the Loisach.
  Title: Perryville station
  Passage: Perryville is a passenger rail station in Perryville, Maryland, served by MARC Train's Penn Line.  The station is located on the southern part of the Northeast Corridor, however Amtrak does not service the station.  A single Amtrak train—"Northeast Regional" #151—stops at Perryville to board MARC ticket holders.  The station is also the northernmost in the MARC system and the terminus for the Penn Line.
  Title: Northeast Corridor
  Passage: 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 Providence, 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.
citations: Perryville station Northeast Corridor