Federal Triangle station
E62581
Federal Triangle station is a Washington Metro rapid transit station located in downtown Washington, D.C., serving the Blue, Orange, and Silver lines near key federal buildings and the National Mall.
All labels observed (4)
| Label | Occurrences |
|---|---|
| Federal Triangle station canonical | 10 |
| Federal Triangle | 3 |
| Federal Triangle Metro station | 3 |
| Federal Triangle complex | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T488279 — 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: Federal Triangle station Context triple: [Pennsylvania Avenue, hasNearbyStation, Federal Triangle station]
-
A.
Union station
Union Station is Toronto’s primary intercity and commuter rail hub, serving as a central transit gateway in the city’s downtown core.
-
B.
Union Station
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.
-
C.
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.
-
D.
Union Station
Union Station is a historic former railroad terminal in St. Louis that has been transformed into a mixed-use complex featuring attractions, dining, and entertainment.
-
E.
Union Station
Union Station is a major historic transportation hub in downtown Dallas that serves as a key rail and transit connection point for the city.
- 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: Federal Triangle station Target entity description: Federal Triangle station is a Washington Metro rapid transit station located in downtown Washington, D.C., serving the Blue, Orange, and Silver lines near key federal buildings and the National Mall.
-
A.
Union station
Union Station is Toronto’s primary intercity and commuter rail hub, serving as a central transit gateway in the city’s downtown core.
-
B.
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.
-
C.
Union Station
Union Station is a historic former railroad terminal in St. Louis that has been transformed into a mixed-use complex featuring attractions, dining, and entertainment.
-
D.
Union Station
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.
-
E.
Union Station
Union Station is a major historic transportation hub in downtown Dallas that serves as a key rail and transit connection point for the city.
- F. None of above. chosen
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
Washington Metro station
ⓘ
rapid transit station ⓘ |
| accessType | street entrances with escalators and elevators ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareSystem | SmarTrip ⓘ |
| fareZone | Zone 1 ⓘ |
| hasArtStyle | Brutalist architecture ⓘ |
| hasConnection | Metrobus services ⓘ |
| hasElevators | yes ⓘ |
| hasEscalators | yes ⓘ |
| hasFaregates | yes ⓘ |
| hasLighting | fluorescent and ambient vault lighting ⓘ |
| hasRestrooms | staff-only or limited access ⓘ |
| hasSecurity | CCTV surveillance ⓘ |
| hasVaultType | coffered concrete vault ⓘ |
| isBelow | 12th Street NW ⓘ |
| isInFareControlArea | mezzanine with faregates ⓘ |
| isPartOf |
Washington Metro
ⓘ
surface form:
Arlington–Washington, D.C. transit network
|
| isWithinWalkingDistanceOf |
National Archives Building
ⓘ
surface form:
National Archives
Smithsonian Institution buildings ⓘ
surface form:
Smithsonian museums on the National Mall
White House vicinity ⓘ |
| locatedIn |
United States of America
ⓘ
surface form:
United States
Washington, D.C. ⓘ |
| locatedInDistrict | Downtown Washington, D.C. ⓘ |
| nearbyAttraction | National Mall ⓘ |
| nearbyBuilding |
U.S. Department of Commerce Headquarters
ⓘ
surface form:
Department of Commerce headquarters
U.S. Environmental Protection Agency Headquarters ⓘ
surface form:
Environmental Protection Agency headquarters
Herbert C. Hoover Building ⓘ Ronald Reagan Building and International Trade Center ⓘ |
| nearIntersection | 12th Street NW and Pennsylvania Avenue NW ⓘ |
| numberOfPlatforms | 1 ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | July 1, 1977 ⓘ |
| openingYear | 1977 ⓘ |
| operator | Washington Metropolitan Area Transit Authority ⓘ |
| ownedBy | Washington Metropolitan Area Transit Authority ⓘ |
| partOfSystem | Washington Metro ⓘ |
| platformType | island platform ⓘ |
| safetyFeature | emergency call boxes ⓘ |
| servedByLine |
Blue Line (Washington Metro)
ⓘ
Orange Line (Washington Metro) ⓘ Silver Line ⓘ
surface form:
Silver Line (Washington Metro)
|
| serves |
Federal Triangle
ⓘ
surface form:
Federal Triangle neighborhood
|
| servesPurpose |
commuter transit
ⓘ
tourist access to National Mall ⓘ |
| stationCode | D01 ⓘ |
| structureType | underground station ⓘ |
| ticketingLocation | mezzanine level above platform ⓘ |
| ticketingSystem | automated fare collection ⓘ |
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: Federal Triangle station Description of subject: Federal Triangle station is a Washington Metro rapid transit station located in downtown Washington, D.C., serving the Blue, Orange, and Silver lines near key federal buildings and the National Mall.
Referenced by (17)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Orange Line (Washington Metro)
this entity surface form:
Federal Triangle
this entity surface form:
Federal Triangle complex
this entity surface form:
Federal Triangle
subject surface form:
Blue Line (Washington Metro)
this entity surface form:
Federal Triangle
this entity surface form:
Federal Triangle Metro station
this entity surface form:
Federal Triangle Metro station
subject surface form:
Washington Metro Silver Line
Ronald Reagan Building and International Trade Center
→
publicTransitAccess
→
Federal Triangle station
ⓘ
subject surface form:
Waldorf Astoria Washington DC
this entity surface form:
Federal Triangle Metro station
subject surface form:
Blue Line (Washington Metro)