Question: In what neighborhood of Upper Manhattan, New York City, does the Second Avenue Line of the New York City Subway border?

full_context: Document 1: East Harlem: East Harlem, also known as Spanish Harlem or El Barrio, is a neighborhood of Upper Manhattan, New York City roughly encompassing the area north of the Upper East Side and East 96th Street up to about the 140s, east of Fifth Avenue to the East and Harlem Rivers. It lies within Manhattan Community District 11. Despite its name, it is generally not considered to be a part of Harlem.
Document 2: 72nd Street (Second Avenue Subway): 72nd Street is a station on the first phase of the Second Avenue Line of the New York City Subway. Located at the intersection of Second Avenue and 72nd Street on the Upper East Side, it opened on January 1, 2017, with the Q train providing full-time service, as well as some N service during rush hours. This is the southernmost station on the first phase of the Second Avenue Line; south of this station, the BMT 63rd Street Line diverges to the west, towards the Lexington Avenue–63rd Street station, and bellmouths exist for a future extension to Second Avenue–Houston Street and Hanover Square.
Document 3: Second Avenue (Manhattan): Second Avenue is an avenue on the East Side of the New York City borough of Manhattan extending from Houston Street at its south end to the Harlem River Drive at 128th Street at its north end. A one-way street, vehicular traffic on Second Avenue runs southbound (downtown) only, except for a one-block segment of the avenue in Harlem. South of Houston Street, the roadway continues as Chrystie Street south to Canal Street. A bicycle lane in the left hand portion from 55th to 34th Street closes a gap in the Manhattan Waterfront Greenway. The bike lane extends from 125th Street all the way down to Houston Street. Second Avenue passes through a number of Manhattan neighborhoods including (from south to north) the Lower East Side, East Village, Gramercy Park, Murray Hill, Upper East Side, Yorkville and Spanish Harlem.
Document 4: WaHI: WaHI stands for "Washington Heights and Inwood," two neighborhoods of Upper Manhattan in New York City. The term was coined by Eduardo Gómez, founder of the WaHI Online community web site, in 2002. The term is commonly used and understood within WaHI Online, but has not caught on widely elsewhere (as opposed to, for example, Hudson Heights, which was chosen by a group of neighborhood activistsand is widely cited). This may be because while Washington Heights and Inwood share the distinction of being the northernmost communities of Manhattan (with attendantly lower housing costs), they are very distinct neighborhoods demographically and geographically, and are represented by different district councils seats (District 10 for Washington Heights, 7 for Inwood).
Document 5: Lower East Side: The Lower East Side, sometimes abbreviated as LES, is a neighborhood in the southeastern part of the New York City borough of Manhattan, roughly located between the Bowery and the East River, and Canal Street and Houston Street. Traditionally an immigrant, working-class neighborhood, it began rapid gentrification in the mid-2000s, prompting The National Trust for Historic Preservation to place the neighborhood on their list of America's Most Endangered Places.
Document 6: West Side (Manhattan): The West Side of Manhattan refers to the side of Manhattan Island which abuts the Hudson River and faces New Jersey. Fifth Avenue, Central Park, and lower Broadway separate it from the East Side. The major neighborhoods on the West Side are (from north to south) West Harlem, Morningside Heights, Manhattan Valley, Upper West Side, Hell's Kitchen, Chelsea, West Village, SoHo, and Tribeca. The 8th Avenue and West Side subway lines connect all parts of the West Side. The main north-south roads servicing the West Side are the Henry Hudson Parkway in the north, and the West Side Highway in the south. The Hudson River Greenway separates them from the west shore of the island.
Document 7: 106th Street (Second Avenue Subway): 106th Street is a planned station along the IND Second Avenue Line of the New York City Subway. It would be located at the intersection of Second Avenue and 106th Street in East Harlem, Manhattan. Proposed since 1968, the station is expected to be built by 2027–2029 as part of Phase 2 of the Second Avenue Subway. When opened, it will initially be served by the Q train, with the T providing service when Phase 3 of the line is built.
Document 8: Second Avenue (IND Sixth Avenue Line): Second Avenue is a station on the IND Sixth Avenue Line of the New York City Subway, located at the intersection of Second Avenue and Houston Street on the border between the East Village and the Lower East Side, in Manhattan. It is served by the F train at all times. Limited M train service also stops here during rush hours.
Document 9: 116th Street (Second Avenue Subway): 116th Street is a planned station along the IND Second Avenue Line of the New York City Subway. It would be located at the intersection of Second Avenue and 116th Street in East Harlem, Manhattan. Proposed since 1968, the station is expected to be built by 2027–2029 as part of Phase 2 of the Second Avenue Subway. When opened, it will initially be served by the Q train, with the T providing service when Phase 3 of the line is built.
Document 10: Chelsea, Manhattan: Chelsea is a neighborhood on the West Side of the borough of Manhattan in New York City. The district's boundaries are roughly 14th Street to the south and the Hudson River and West Street to the west, with the northern boundary variously described as 30th Street or 34th Street, and the eastern boundary as either Sixth Avenue or Fifth Avenue. To the north of Chelsea is the neighborhood of Hell's Kitchen, as well as the Hudson Yards; to the northeast is the Garment District; to the east are NoMad and the Flatiron District; to the southwest is the Meatpacking District; and to the south and southeast are the West Village and the remainder of Greenwich Village.
Document 11: Upper West Side: The Upper West Side, sometimes abbreviated UWS, is a neighborhood in the borough of Manhattan, New York City, that lies between Central Park and the Hudson River and between West 59th Street and West 110th Street. The Upper West Side is sometimes also considered by the real estate industry to include the neighborhood of Morningside Heights.
Document 12: Second Avenue Subway: The Second Avenue Subway (officially the IND Second Avenue Line; abbreviated to SAS) is a New York City Subway line that runs under Second Avenue on the East Side of Manhattan. The first phase of this new line opened on January 1, 2017, connecting three new stations between 96th Street and the 63rd Street Lines to the BMT Broadway Line and the rest of the subway system. The full Second Avenue Line, if and when funded, is to be built in three more phases that will eventually connect 125th Street to Hanover Square. The proposed full line would be 8.5 mi long with 16 stations and a projected daily ridership of 560,000, costing more than $17 billion.
Document 13: 96th Street (Second Avenue Subway): 96th Street is a station on the IND Second Avenue Line of the New York City Subway. Located at the intersection of Second Avenue and 96th Street on the border of the Upper East Side and East Harlem neighborhoods in Manhattan, it is the northern terminus for the Q train at all times, and for some N trains during rush hours. This station is the terminus for the first phase of the Second Avenue Line.
Document 14: York Avenue / Sutton Place: York Avenue and Sutton Place are the names of a relatively short north-south thoroughfare in the Yorkville, Lenox Hill, and Sutton Place neighborhoods of the East Side of Manhattan, in New York City. York Avenue runs from 59th to 91st Streets through eastern Lenox Hill and Yorkville on the Upper East Side. Sutton Place and its southern extension runs through their namesake neighborhood along the East River and south of the Queensboro Bridge, with Sutton Place South running from 53rd to 57th Streets and Sutton Place from 57th to 59th Streets. The street is considered among the city's most affluent, and both portions are known for upscale apartments, much like the rest of the Upper East Side.
Document 15: Morningside Heights, Manhattan: Morningside Heights is a neighborhood of the borough of Manhattan in New York City, on the border of the Upper West Side and Manhattanville. The area is usually described as being on the Upper West Side, but has been described as part of "Greater Harlem" due to a disputed claim that the Upper West Side goes no farther north than 110th Street.
ground_truth: East Harlem