Union Station
E223
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
All labels observed (11)
How this entity was disambiguated
This entity first appeared as the object of triple T1168 — 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: Union Station Context triple: [Washington, D.C., hasLandmark, Union Station]
-
A.
University City, Philadelphia
University City, Philadelphia is a vibrant West Philadelphia neighborhood known for its concentration of major universities, research institutions, and cultural venues.
-
B.
Arlington, Virginia
Arlington, Virginia is an urban county directly across the Potomac River from Washington, D.C., known for its dense development, federal government agencies, and landmarks such as the Pentagon and Arlington National Cemetery.
-
C.
Douglas
Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
-
D.
John F. Kennedy International Airport
John F. Kennedy International Airport is a major international air travel hub located in Queens, serving as one of the primary gateways to New York City and the United States.
-
E.
Washington, D.C.
Washington, D.C. is the capital city of the United States, serving as the nation’s political center and home to its federal government institutions.
- 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: Union Station Target entity description: Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
-
A.
Waverley station
Waverley station is a Massachusetts Bay Transportation Authority (MBTA) commuter rail stop in Belmont, Massachusetts, serving the Fitchburg Line.
-
B.
United Nations Headquarters
The United Nations Headquarters is the main administrative and diplomatic center of the UN, where representatives of member states convene to discuss and address global issues.
-
C.
University City, Philadelphia
University City, Philadelphia is a vibrant West Philadelphia neighborhood known for its concentration of major universities, research institutions, and cultural venues.
-
D.
Arlington, Virginia
Arlington, Virginia is an urban county directly across the Potomac River from Washington, D.C., known for its dense development, federal government agencies, and landmarks such as the Pentagon and Arlington National Cemetery.
-
E.
Douglas
Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
- F. None of above. chosen
Statements (53)
| Predicate | Object |
|---|---|
| instanceOf |
Beaux-Arts building
ⓘ
historic place ⓘ intercity rail terminal ⓘ railway station ⓘ transportation hub ⓘ |
| address | 50 Massachusetts Avenue NE, Washington, D.C. ⓘ |
| architect |
Daniel Burnham
ⓘ
Pierce Anderson ⓘ |
| architecturalStyle | Beaux-Arts ⓘ |
| connectedTo |
Union Station
self-linksurface differs
ⓘ
surface form:
Union Station (Washington Metro)
|
| country |
United States of America
ⓘ
surface form:
United States
|
| designatedNationalHistoricLandmark | 1969 ⓘ |
| hasFeature |
coffered barrel-vaulted ceiling
ⓘ
food court ⓘ grand main hall ⓘ large colonnaded façade ⓘ parking garage ⓘ retail concourse ⓘ taxi stands ⓘ tour bus facilities ⓘ |
| hasFunction |
bus terminal
ⓘ
commuter rail station ⓘ intercity rail terminal ⓘ metro station complex ⓘ restaurant and dining venue ⓘ retail center ⓘ |
| hasStationCode | WAS ⓘ |
| locatedIn |
Capitol Hill
ⓘ
surface form:
Capitol Hill neighborhood
Washington, D.C. ⓘ |
| near |
National Mall
ⓘ
United States Capitol ⓘ |
| NRHPListingDate | 1969 ⓘ |
| NRHPStatus | listed on the National Register of Historic Places ⓘ |
| opened | 1907 ⓘ |
| openingDate | October 27, 1907 ⓘ |
| operatedBy |
Amtrak
ⓘ
Union Station Redevelopment Corporation ⓘ |
| ownedBy | United States government ⓘ |
| partOf |
Washington Metro
ⓘ
surface form:
National Mall and Capitol Hill area transportation network
|
| platforms | multiple island and side platforms ⓘ |
| servedByLine | Northeast Corridor ⓘ |
| servedByService |
Amtrak
ⓘ
surface form:
Acela
Northeast Corridor ⓘ
surface form:
Northeast Regional
long-distance Amtrak trains ⓘ |
| serves |
Amtrak
ⓘ
MARC Train ⓘ Virginia Railway Express ⓘ Washington Metro ⓘ
surface form:
Washington Metro Red Line
commuter buses ⓘ intercity buses ⓘ local buses ⓘ tour buses ⓘ |
| tracks | 20+ ⓘ |
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: Union Station Description of subject: Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
Referenced by (53)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Washington Union Station
this entity surface form:
Washington Union Station
this entity surface form:
Washington Union Station