Grand Central Madison
E32748
Grand Central Madison is a major New York City rail terminal located beneath Grand Central Terminal, built to bring Long Island Rail Road service directly into Midtown Manhattan.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Grand Central Madison canonical | 29 |
| Grand Central Madison Terminal | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T164806 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Grand Central Madison Context triple: [Long Island Rail Road, terminus, Grand Central Madison]
-
A.
Chicago Union Station
Chicago Union Station is a major intercity and commuter rail terminal in downtown Chicago that serves as a central hub for Amtrak and regional rail services.
-
B.
Lincoln Square
Lincoln Square is a central public square and traffic circle in downtown Hodgenville, Kentucky, featuring monuments that commemorate the birthplace and legacy of President Abraham Lincoln.
-
C.
Central Square
Central Square is a vibrant commercial and cultural district in Cambridge, Massachusetts, known for its diverse restaurants, nightlife, music venues, and arts scene.
-
D.
Water Tower Place
Water Tower Place is a major mixed-use skyscraper and shopping complex in Chicago, known for its prominent location along the city’s Magnificent Mile.
-
E.
Union Station
Union Station is the main railway station and a historic transportation hub in downtown Los Angeles, renowned for its Mission Revival and Art Deco architecture.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Grand Central Madison Target entity description: Grand Central Madison is a major New York City rail terminal located beneath Grand Central Terminal, built to bring Long Island Rail Road service directly into Midtown Manhattan.
-
A.
Chicago Union Station
Chicago Union Station is a major intercity and commuter rail terminal in downtown Chicago that serves as a central hub for Amtrak and regional rail services.
-
B.
Lincoln Square
Lincoln Square is a central public square and traffic circle in downtown Hodgenville, Kentucky, featuring monuments that commemorate the birthplace and legacy of President Abraham Lincoln.
-
C.
Central Square
Central Square is a vibrant commercial and cultural district in Cambridge, Massachusetts, known for its diverse restaurants, nightlife, music venues, and arts scene.
-
D.
Water Tower Place
Water Tower Place is a major mixed-use skyscraper and shopping complex in Chicago, known for its prominent location along the city’s Magnificent Mile.
-
E.
Union Station
Union Station is the main railway station and a historic transportation hub in downtown Los Angeles, renowned for its Mission Revival and Art Deco architecture.
- F. None of above. chosen
Statements (61)
| Predicate | Object |
|---|---|
| instanceOf |
commuter rail station
ⓘ
rail terminal ⓘ underground station ⓘ |
| accessible | yes ⓘ |
| builtAsPartOf |
East Side Access
ⓘ
surface form:
East Side Access project
|
| category |
Long Island Rail Road stations in Manhattan
ⓘ
Railway stations in the United States opened in 2023 ⓘ |
| connectsTo |
Long Island
ⓘ
Nassau County, New York ⓘ
surface form:
Nassau County
Queens ⓘ Suffolk County, New York ⓘ
surface form:
Suffolk County
|
| connectsWith |
New Haven Line at Grand Central Terminal
ⓘ
surface form:
Metro-North Railroad at Grand Central Terminal
Grand Central–42nd Street station ⓘ
surface form:
New York City Subway at Grand Central–42nd Street
|
| constructionMethod | deep cavern excavation ⓘ |
| country | United States of America ⓘ |
| fareSystem | MTA fare system ⓘ |
| hasAbbreviation | GCM ⓘ |
| hasAlternativeName |
Grand Central LIRR terminal
ⓘ
Grand Central Madison ⓘ
surface form:
Grand Central Madison Terminal
|
| hasFacility |
customer service center
ⓘ
digital departure boards ⓘ restrooms ⓘ retail space ⓘ ticket machines ⓘ waiting areas ⓘ |
| hasFeature |
art installations
ⓘ
elevators ⓘ multiple escalators ⓘ |
| hasLevel |
mezzanine concourse
ⓘ
platform level ⓘ |
| locatedBeneath | Grand Central Terminal ⓘ |
| locatedIn |
Manhattan
ⓘ
Midtown Manhattan ⓘ New York City ⓘ New York ⓘ
surface form:
New York State
|
| locatedUnder | Madison Avenue ⓘ |
| numberOfPlatforms | 4 island platforms ⓘ |
| numberOfTracks | 8 ⓘ |
| openingDate | 2023 ⓘ |
| operatedBy | Long Island Rail Road ⓘ |
| ownedBy | Metropolitan Transportation Authority ⓘ |
| partOf |
Grand Central Terminal
ⓘ
surface form:
Grand Central Terminal complex
|
| platformType | island platform ⓘ |
| projectName | East Side Access ⓘ |
| purpose | provide Long Island Rail Road service to Midtown Manhattan ⓘ |
| railwayLine |
Babylon Branch
ⓘ
Far Rockaway Branch ⓘ Hempstead Branch ⓘ Long Beach Branch ⓘ Long Island Rail Road ⓘ Long Island Rail Road Main Line ⓘ
surface form:
Main Line (LIRR)
Montauk Branch ⓘ Oyster Bay Branch ⓘ Port Jefferson Branch ⓘ Port Washington Branch ⓘ Ronkonkoma Branch ⓘ West Hempstead Branch ⓘ |
| serviceBegan | 2023 ⓘ |
| streetAddress | 89 East 42nd Street (Grand Central complex) ⓘ |
| structureType | deep-level station ⓘ |
| timezone | Eastern Time Zone ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Grand Central Madison Description of subject: Grand Central Madison is a major New York City rail terminal located beneath Grand Central Terminal, built to bring Long Island Rail Road service directly into Midtown Manhattan.
Referenced by (30)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Long Island Rail Road
subject surface form:
Main Line (Long Island Rail Road)
this entity surface form:
Grand Central Madison Terminal