Question: What rail service serving Burke Centre formerly known as "NortheastDirect"?
Context: Union Station is a former train station in Seattle, Washington, United States, constructed between 1910 and 1911 to serve the Union Pacific Railroad and the Milwaukee Road.  It was originally named Oregon and Washington Station, after a subsidiary line of the Union Pacific.  Located at the corner of S. Jackson Street and 4th Avenue S. in the Pioneer Square neighborhood, the station opened on May 20, 1911.  The Milwaukee Road discontinued passenger service to Union Station 50 years later, on May 22, 1961, and the Union Pacific followed suit on April 30, 1971.  With no passenger rail service serving Seattle from Union Station, the building remained largely empty.  After nearly 30 years of sitting idle, the station finally experienced an expansive renovation supported by Nitze-Stagen with financial backing from Paul Allen.  The Union Station renovation was the winner of the 2000 National Historic Preservation Award.  It now serves as the headquarters of Sound Transit; its grand hall is rented out to the public for weddings and other events. The Northeast Regional is a higher-speed rail service operated by Amtrak in the Northeastern and Mid-Atlantic United States.  In the past it has been known as the "NortheastDirect", "Acela Regional", or "Regional".  It is the busiest Amtrak route, carrying 8.04 million passengers in fiscal year (FY) 2013, a 0.4% increase over the 8.01 million passengers in FY2012.  The "Northeast Regional" service earned over $568.7 million in gross ticket revenue in FY2013, a 6.2% increase over the $536 million earned during FY2012. Target Field Station (formerly known during construction under the names of Minneapolis Intermodal Station, Downtown Minneapolis Ballpark Station and The Interchange) is a multimodal commuter train and light rail station in Minneapolis, Minnesota.  Located in the North Loop area of Downtown Minneapolis, the station's name reflects the Minnesota Twins Target Field baseball stadium next to the station, Target Field.  METRO Blue Line light rail service started November 14, 2009; Northstar Line commuter rail service started November 16, 2009; METRO Green Line light rail service started on June 14, 2014. Rail transport in the Philippines is used mostly to transport passengers within Metro Manila.  The Philippine railway network consists of one commuter rail service provided by the Philippine National Railways (PNR), and multiple light rail systems operated by the Light Rail Transit Authority and Metro Rail Transit Corporation.  Within the last century, there were operating intercity rail lines extending from Manila both north and south, as well as on Panay and Cebu islands.  The Philippine Railway Company, which operated both the Panay and Cebu lines, still exists but owns no rolling stock or rail, only property.  Other shorter lines were built and operated on Negros island, serving sugar plantations and mills there, as well as elsewhere around the country.  Some of those lines still operate seasonally. Altamonte Springs station is a train station in Altamonte Springs, Florida, serving SunRail, the commuter rail service of Central Florida.  The station opened May 1, 2014, and marks the return of passenger rail service in Altamonte Springs since the days of the Atlantic Coast Line Railroad.  It is the southernmost SunRail station in Seminole County, Florida. The Pittsburgh Light Rail (commonly known as The T) is a 26.2 mi light rail system in Pittsburgh, Pennsylvania; it functions as a subway in Downtown Pittsburgh and largely as an at-grade light rail service in the suburbs south of the city.  The system is largely linear in a north-south direction, with one terminus just north of Pittsburgh's central business district and two termini in the South Hills.  The system is owned and operated by the Port Authority of Allegheny County.  It is the successor system to the streetcar network formerly operated by Pittsburgh Railways, the oldest portions of which date to 1903.  The Pittsburgh light rail lines are vestigial from the city's streetcar days, and is one of only three light rail systems in the United States that continues to use the Pennsylvania Trolley (broad) gauge rail on its lines instead of .  Pittsburgh is one of the few North American cities that have continued to operate light rail systems in an uninterrupted evolution from the first-generation streetcar era, along with Boston, Cleveland, New Orleans, Newark, Philadelphia, San Francisco and Toronto. Burke Centre is a railway station in Burke Centre, Burke, Fairfax County, Virginia.  It is served by the Virginia Railway Express Manassas Line, as well as one daily Amtrak "Northeast Regional" round trip. The Alice Springs Youth Detention Centre formerly known as Alice Springs Juvenile Holding Centre, an Australian medium to maximum security prison for juvenile males and females, is located in Alice Springs, Northern Territory, Australia. The Babylon Branch is a rail service operated by the Long Island Rail Road in the U.S. state of New York.  The term refers to the trains serving Montauk Branch stations from Valley Stream east to Babylon; in other words, the Babylon Branch is a rail service rather than an actual track.  The electrification of the Montauk Branch ends east of the Babylon station, so the Babylon Branch is mostly served by electric trains. Nanuet is a train station in Nanuet, New York, serving Metro-North Railroad and New Jersey Transit trains on the Pascack Valley Line.  Its official address is 1 Prospect Street, but in reality, it is located on Orchard Street West, diagonally off the southwest corner of Prospect Street and Middletown Road.  This line runs north-south to Hoboken Terminal with connections via the Secaucus Junction transfer station to New Jersey Transit one-stop service to New York Penn Station and to other New Jersey Transit rail service.  Connections are available at the Hoboken Terminal to other New Jersey Transit rail lines, the PATH train at the Hoboken, New York Waterways ferry service to the World Financial Center and other destinations, and Hudson-Bergen Light Rail service.
Answer: "Northeast Regional"