Pentagon station
E776773
Pentagon station is a major Washington Metro transit hub in Arlington, Virginia, serving the Pentagon and connecting multiple lines and bus routes.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Pentagon station canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T9077632 — 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: Pentagon station Context triple: [Arlington Cemetery station, adjacentStation, Pentagon station]
-
A.
Pentagon City station
Pentagon City station is a Washington Metro rapid transit stop in Arlington, Virginia, serving the Pentagon City neighborhood and its adjacent shopping and office complexes.
-
B.
Federal Center station
Federal Center station is a light rail transit stop in Lakewood, Colorado, serving Denver’s RTD W Line and the nearby Denver Federal Center complex.
-
C.
Roosevelt station
Roosevelt station is a major Chicago 'L' rapid transit stop in the South Loop that serves as a key access point to nearby attractions including the Field Museum, Shedd Aquarium, and Soldier Field.
-
D.
Judiciary Square station
Judiciary Square station is an underground Washington Metro station in downtown Washington, D.C., serving the city's judicial and government district.
-
E.
Smithsonian Metro station
Smithsonian Metro station is a Washington, D.C. Metrorail stop on the National Mall that serves major museums and monuments including the Smithsonian Institution.
- 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: Pentagon station Target entity description: Pentagon station is a major Washington Metro transit hub in Arlington, Virginia, serving the Pentagon and connecting multiple lines and bus routes.
-
A.
Pentagon City station
Pentagon City station is a Washington Metro rapid transit stop in Arlington, Virginia, serving the Pentagon City neighborhood and its adjacent shopping and office complexes.
-
B.
Federal Center station
Federal Center station is a light rail transit stop in Lakewood, Colorado, serving Denver’s RTD W Line and the nearby Denver Federal Center complex.
-
C.
Roosevelt station
Roosevelt station is a major Chicago 'L' rapid transit stop in the South Loop that serves as a key access point to nearby attractions including the Field Museum, Shedd Aquarium, and Soldier Field.
-
D.
Judiciary Square station
Judiciary Square station is an underground Washington Metro station in downtown Washington, D.C., serving the city's judicial and government district.
-
E.
Smithsonian Metro station
Smithsonian Metro station is a Washington, D.C. Metrorail stop on the National Mall that serves major museums and monuments including the Smithsonian Institution.
- F. None of above. chosen
Statements (34)
| Predicate | Object |
|---|---|
| instanceOf | Washington Metro station ⓘ |
| accessible | yes ⓘ |
| adjacentTo | The Pentagon road network ⓘ |
| category |
Blue Line stations
ⓘ
Railway stations in Arlington County, Virginia ⓘ Railway stations opened in 1977 ⓘ Washington Metro stations NERFINISHED ⓘ Yellow Line stations NERFINISHED ⓘ |
| connectsTo | Pentagon Transit Center NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| fareControlType | gated ⓘ |
| fareSystem | SmarTrip NERFINISHED ⓘ |
| hasBicycleFacilities | yes ⓘ |
| hasBusConnections | yes ⓘ |
| hasCode |
C07
ⓘ
C08 ⓘ |
| hasEntrance | Pentagon Reservation NERFINISHED ⓘ |
| isMajorTransferPoint | yes ⓘ |
| line |
Blue Line
NERFINISHED
ⓘ
Yellow Line NERFINISHED ⓘ |
| locatedIn |
Arlington, Virginia
ⓘ
United States of America ⓘ
surface form:
United States
|
| near | Pentagon City NERFINISHED ⓘ |
| numberOfPlatforms | 2 ⓘ |
| numberOfTracks | 2 ⓘ |
| openingDate | 1977-07-01 ⓘ |
| operatedBy | Washington Metropolitan Area Transit Authority ⓘ |
| ownedBy | Washington Metropolitan Area Transit Authority ⓘ |
| partOf | Washington Metro NERFINISHED ⓘ |
| platformType | island platform ⓘ |
| securityLevel | high ⓘ |
| serves | The Pentagon NERFINISHED ⓘ |
| servesCity | Washington, D.C. metropolitan area NERFINISHED ⓘ |
| structureType | underground station ⓘ |
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: Pentagon station Description of subject: Pentagon station is a major Washington Metro transit hub in Arlington, Virginia, serving the Pentagon and connecting multiple lines and bus routes.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Blue Line (Washington Metro)