AeroTrain
E4424
AeroTrain is an automated underground people mover system that transports passengers between terminals at Washington Dulles International Airport.
All labels observed (3)
| Label | Occurrences |
|---|---|
| AeroTrain system | 4 |
| AeroTrain canonical | 2 |
| Aerotrain stations | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T21678 — 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: AeroTrain Context triple: [Washington Dulles International Airport, hasPeopleMover, AeroTrain]
-
A.
AirTrain JFK
AirTrain JFK is an elevated people mover system in New York City that links John F. Kennedy International Airport with nearby subway, commuter rail, and parking facilities.
-
B.
MARC Train
MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
-
C.
Terminal 4
Terminal 4 is a major international passenger terminal at John F. Kennedy International Airport in New York City, serving numerous global airlines and long-haul routes.
-
D.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
-
E.
Terminal 5
Terminal 5 is a major passenger terminal at John F. Kennedy International Airport in New York City, known for serving as the primary hub for JetBlue Airways.
- 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: AeroTrain Target entity description: AeroTrain is an automated underground people mover system that transports passengers between terminals at Washington Dulles International Airport.
-
A.
AirTrain JFK
AirTrain JFK is an elevated people mover system in New York City that links John F. Kennedy International Airport with nearby subway, commuter rail, and parking facilities.
-
B.
MARC Train
MARC Train is a commuter rail service operating in Maryland and the surrounding region, connecting cities such as Washington, D.C., Baltimore, and Martinsburg.
-
C.
Terminal 4
Terminal 4 is a major international passenger terminal at John F. Kennedy International Airport in New York City, serving numerous global airlines and long-haul routes.
-
D.
Portland Streetcar
Portland Streetcar is a modern urban streetcar transit system serving central Portland, Oregon, connecting key neighborhoods, employment centers, and educational institutions.
-
E.
Terminal 5
Terminal 5 is a major passenger terminal at John F. Kennedy International Airport in New York City, known for serving as the primary hub for JetBlue Airways.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
airport people mover
ⓘ
automated people mover system ⓘ transportation system ⓘ |
| accessControl | airside secure area only ⓘ |
| accessibility | wheelchair accessible ⓘ |
| automationLevel | driverless ⓘ |
| category |
Airport rail links in the United States
ⓘ
Automated guideway transit ⓘ Transport in Virginia ⓘ Washington Dulles International Airport infrastructure ⓘ |
| connectsTo |
Concourse A at Washington Dulles International Airport
ⓘ
linked to:
Concourse A
Concourse B at Washington Dulles International Airport ⓘ
linked to:
Concourse B
Main Terminal at Washington Dulles International Airport ⓘ
linked to:
Washington Dulles International Airport
future concourses at Washington Dulles International Airport ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| designedTo |
improve passenger transfer times
ⓘ
increase airport capacity ⓘ reduce reliance on mobile lounges ⓘ |
| environment | air-conditioned ⓘ |
| fareSystem | free of charge for passengers ⓘ |
| guidewayType | underground guideway ⓘ |
| hasStation |
Concourse A Station
ⓘ
Concourse B Station ⓘ Main Terminal Station ⓘ future concourse stations (planned) ⓘ |
| locatedIn |
Dulles, Virginia
ⓘ
Virginia ⓘ Washington Dulles International Airport ⓘ Washington metropolitan area ⓘ |
| opened | 2010 ⓘ |
| openingDate | January 2010 ⓘ |
| operator | Metropolitan Washington Airports Authority ⓘ |
| ownedBy | Metropolitan Washington Airports Authority ⓘ |
| powerSupply | electric ⓘ |
| primaryFunction | connect main terminal to midfield concourses ⓘ |
| propulsion | rubber-tired automated vehicles ⓘ |
| replaced | mobile lounges at Washington Dulles International Airport ⓘ |
| safetyFeatures |
automatic train control
ⓘ
platform screen doors ⓘ |
| servesAirport | Washington Dulles International Airport ⓘ |
| serviceType | airside people mover ⓘ |
| status | operational ⓘ |
| structureType | underground system ⓘ |
| systemLength | approximately 3.8 miles ⓘ |
| trackGauge | rubber-tired guideway (no conventional rail gauge) ⓘ |
| transports | airline passengers ⓘ |
| transportsBetween | airport terminals ⓘ |
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: AeroTrain Description of subject: AeroTrain is an automated underground people mover system that transports passengers between terminals at Washington Dulles International Airport.
Referenced by (7)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: AeroTrain
linked to: AeroTrain
linked to: AeroTrain
subject linked to:
Concourse C Station (via AeroTrain system, if applicable)
linked to: AeroTrain
linked to: AeroTrain