Dulles Greenway
E74616
Dulles Greenway is a privately owned toll road in Northern Virginia that connects Washington Dulles International Airport with communities in Loudoun County.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Dulles Greenway canonical | 11 |
| Dulles Greenway (State Route 267) | 3 |
| Dulles Greenway (VA Route 267) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T437703 — 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: Dulles Greenway Context triple: [Loudoun County, Virginia, hasTransportationRoute, Dulles Greenway]
-
A.
Baltimore–Washington Parkway
The Baltimore–Washington Parkway is a major scenic highway in Maryland that connects the cities of Baltimore and Washington, D.C., serving as a key commuter and transportation route in the region.
-
B.
Fairfax County Parkway
Fairfax County Parkway is a major north–south arterial highway in Northern Virginia that connects numerous suburban communities and provides an important commuter route around the western side of the Washington, D.C. metropolitan area.
-
C.
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.
-
D.
George Washington Memorial Parkway
The George Washington Memorial Parkway is a scenic roadway and protected parkland along the Potomac River in the Washington, D.C. area, designed to honor George Washington while providing access to historic sites and natural areas.
-
E.
Minuteman Bikeway
Minuteman Bikeway is a popular multi-use rail trail in Massachusetts that follows a historic railroad corridor through several suburban communities northwest of Boston.
- 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: Dulles Greenway Target entity description: Dulles Greenway is a privately owned toll road in Northern Virginia that connects Washington Dulles International Airport with communities in Loudoun County.
-
A.
Baltimore–Washington Parkway
The Baltimore–Washington Parkway is a major scenic highway in Maryland that connects the cities of Baltimore and Washington, D.C., serving as a key commuter and transportation route in the region.
-
B.
Fairfax County Parkway
Fairfax County Parkway is a major north–south arterial highway in Northern Virginia that connects numerous suburban communities and provides an important commuter route around the western side of the Washington, D.C. metropolitan area.
-
C.
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.
-
D.
George Washington Memorial Parkway
The George Washington Memorial Parkway is a scenic roadway and protected parkland along the Potomac River in the Washington, D.C. area, designed to honor George Washington while providing access to historic sites and natural areas.
-
E.
Minuteman Bikeway
Minuteman Bikeway is a popular multi-use rail trail in Massachusetts that follows a historic railroad corridor through several suburban communities northwest of Boston.
- F. None of above. chosen
Statements (31)
| Predicate | Object |
|---|---|
| instanceOf |
highway
ⓘ
limited-access road ⓘ toll road ⓘ |
| connectsTo |
Ashburn
ⓘ
surface form:
Ashburn, Virginia
Leesburg ⓘ
surface form:
Leesburg, Virginia
Sterling, Virginia ⓘ Washington Dulles International Airport ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| easternTerminus | near Washington Dulles International Airport ⓘ |
| hasElectronicTollCollection | yes ⓘ |
| hasInterchanges | multiple grade-separated interchanges ⓘ |
| hasJunctionWith |
Dulles Toll Road
ⓘ
Virginia State Route 7 ⓘ
surface form:
Harry Byrd Highway (VA Route 7)
|
| hasSpeedLimit | approximately 65 mph ⓘ |
| hasTollPlazas | yes ⓘ |
| length | approximately 14 miles ⓘ |
| locatedIn |
Loudoun County, Virginia
ⓘ
Northern Virginia ⓘ |
| locatedInMetropolitanArea |
Washington metropolitan area
ⓘ
surface form:
Washington, D.C. metropolitan area
|
| opened | 1995 ⓘ |
| ownership | privately owned ⓘ |
| partOf | Virginia State Route 267 ⓘ |
| primaryFunction |
access to Washington Dulles International Airport
ⓘ
commuter route ⓘ |
| regionServed |
Loudoun County, Virginia
ⓘ
Washington metropolitan area ⓘ |
| roadSurface | asphalt ⓘ |
| roadType | four-lane divided highway ⓘ |
| state | Virginia ⓘ |
| tollStatus | tolled ⓘ |
| westernTerminus |
Leesburg
ⓘ
surface form:
Leesburg, Virginia
|
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: Dulles Greenway Description of subject: Dulles Greenway is a privately owned toll road in Northern Virginia that connects Washington Dulles International Airport with communities in Loudoun County.
Referenced by (15)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Sterling, Virginia
subject surface form:
Ashburn, Virginia
this entity surface form:
Dulles Greenway (State Route 267)
this entity surface form:
Dulles Greenway (State Route 267)
this entity surface form:
Dulles Greenway (State Route 267)
this entity surface form:
Dulles Greenway (VA Route 267)
subject surface form:
SR 28 (Virginia)