Arlington–Downtown–Largo trunk
E493562
The Arlington–Downtown–Largo trunk is a central Washington Metro rail corridor that carries multiple lines through Arlington, downtown Washington, D.C., and eastward toward Largo.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Arlington–Downtown–Largo trunk canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5107306 — 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: Arlington–Downtown–Largo trunk Context triple: [Federal Center SW station, isOnCorridor, Arlington–Downtown–Largo trunk]
-
A.
Bladensburg Road NE corridor
Bladensburg Road NE corridor is a major commercial and transportation artery in Northeast Washington, D.C., lined with retail, industrial sites, and residential neighborhoods.
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B.
Dulles Corridor
Dulles Corridor is a major high-technology and business hub in Northern Virginia that stretches along the Dulles Toll Road and connects the Washington, D.C. suburbs to Washington Dulles International Airport.
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C.
Anacostia Freeway (I-295)
The Anacostia Freeway (I-295) is a major Interstate highway in Washington, D.C., running along the eastern bank of the Anacostia River and serving as a key commuter and regional traffic corridor.
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D.
Hampton Roads Beltway
The Hampton Roads Beltway is a circumferential interstate highway loop in southeastern Virginia that connects the region’s major cities and waterways via a series of bridges and tunnels.
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E.
Baltimore Beltway
The Baltimore Beltway is a major circumferential highway encircling Baltimore, Maryland, connecting the city's suburbs and key regional routes.
- 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: Arlington–Downtown–Largo trunk Target entity description: The Arlington–Downtown–Largo trunk is a central Washington Metro rail corridor that carries multiple lines through Arlington, downtown Washington, D.C., and eastward toward Largo.
-
A.
Bladensburg Road NE corridor
Bladensburg Road NE corridor is a major commercial and transportation artery in Northeast Washington, D.C., lined with retail, industrial sites, and residential neighborhoods.
-
B.
Dulles Corridor
Dulles Corridor is a major high-technology and business hub in Northern Virginia that stretches along the Dulles Toll Road and connects the Washington, D.C. suburbs to Washington Dulles International Airport.
-
C.
Anacostia Freeway (I-295)
The Anacostia Freeway (I-295) is a major Interstate highway in Washington, D.C., running along the eastern bank of the Anacostia River and serving as a key commuter and regional traffic corridor.
-
D.
Hampton Roads Beltway
The Hampton Roads Beltway is a circumferential interstate highway loop in southeastern Virginia that connects the region’s major cities and waterways via a series of bridges and tunnels.
-
E.
Baltimore Beltway
The Baltimore Beltway is a major circumferential highway encircling Baltimore, Maryland, connecting the city's suburbs and key regional routes.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
Washington Metro trunk line
ⓘ
rapid transit corridor ⓘ |
| carriesLine |
Blue Line (Washington Metro)
NERFINISHED
ⓘ
Orange Line (Washington Metro) NERFINISHED ⓘ Silver Line (Washington Metro) NERFINISHED ⓘ |
| connectsArea |
Downtown Washington, D.C.
NERFINISHED
ⓘ
Northern Virginia NERFINISHED ⓘ Prince George's County, Maryland NERFINISHED ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| easternTerminusArea | Largo, Maryland NERFINISHED ⓘ |
| function | central rail corridor for multiple Metro lines ⓘ |
| hasOwner | Washington Metropolitan Area Transit Authority NERFINISHED ⓘ |
| locatedIn | Washington metropolitan area ⓘ |
| locatedInTimeZone | Eastern Time Zone ⓘ |
| modeOfTransport | rail ⓘ |
| operator | Washington Metropolitan Area Transit Authority ⓘ |
| partOf | Washington Metro NERFINISHED ⓘ |
| passesThrough |
Arlington County, Virginia
NERFINISHED
ⓘ
Downtown Washington, D.C. NERFINISHED ⓘ |
| servesCity |
Arlington, Virginia
NERFINISHED
ⓘ
Largo, Maryland NERFINISHED ⓘ Washington, D.C. NERFINISHED ⓘ |
| systemType | heavy rail rapid transit ⓘ |
| transitRole | core east–west spine of Washington Metro network ⓘ |
| usesInfrastructure | Washington Metro shared tracks ⓘ |
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: Arlington–Downtown–Largo trunk Description of subject: The Arlington–Downtown–Largo trunk is a central Washington Metro rail corridor that carries multiple lines through Arlington, downtown Washington, D.C., and eastward toward Largo.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.