Capital Beltway
E118555
The Capital Beltway is a major circumferential highway encircling Washington, D.C., serving as a key transportation artery for the metropolitan region.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Capital Beltway canonical | 30 |
| Capital Beltway (Interstate 495) | 2 |
| Capital Beltway (Interstate 495/95) | 1 |
| Maryland segment of Capital Beltway | 1 |
| Washington Beltway | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T687952 — 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: Capital Beltway Context triple: [I-66 Express Lanes Outside the Beltway, locatedOutside, Capital Beltway]
-
A.
Dulles Greenway
Dulles Greenway is a privately owned toll road in Northern Virginia that connects Washington Dulles International Airport with communities in Loudoun County.
-
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.
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.
-
D.
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.
-
E.
Interstate 66
Interstate 66 is a major east–west U.S. highway in the Mid-Atlantic region that connects Washington, D.C. with northern Virginia and extends westward toward the Shenandoah Valley.
- 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: Capital Beltway Target entity description: The Capital Beltway is a major circumferential highway encircling Washington, D.C., serving as a key transportation artery for the metropolitan region.
-
A.
Dulles Greenway
Dulles Greenway is a privately owned toll road in Northern Virginia that connects Washington Dulles International Airport with communities in Loudoun County.
-
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.
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.
-
D.
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.
-
E.
Interstate 66
Interstate 66 is a major east–west U.S. highway in the Mid-Atlantic region that connects Washington, D.C. with northern Virginia and extends westward toward the Shenandoah Valley.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
Interstate Highway
ⓘ
beltway ⓘ limited-access highway ⓘ |
| connectsTo |
Baltimore–Washington International Airport via connecting routes
ⓘ
Dulles International Airport via connecting routes ⓘ Reagan National Airport via connecting routes ⓘ |
| country |
United States of America
ⓘ
surface form:
United States
|
| crosses | Potomac River ⓘ |
| crossesVia | Woodrow Wilson Bridge ⓘ |
| encircles | Washington, D.C. ⓘ |
| formsJunctionWith |
Baltimore–Washington Parkway
ⓘ
I-270 NERFINISHED ⓘ Interstate 66 ⓘ
surface form:
I-66
Interstate 95 ⓘ
surface form:
I-95
U.S. Route 50 ⓘ
surface form:
US 50
|
| hasAlternateRouteNumber |
Interstate 95
ⓘ
surface form:
I-95
|
| hasBridge | Woodrow Wilson Bridge ⓘ |
| hasDirectionDesignation |
Inner Loop clockwise
ⓘ
Outer Loop counterclockwise ⓘ |
| hasExpressLanes | yes (in Virginia segments) ⓘ |
| hasLaneCount | varies between 6 and 12 lanes ⓘ |
| hasNickname |
Interstate 495
ⓘ
surface form:
I-495
|
| hasRouteNumber |
Interstate 495
ⓘ
surface form:
I-495
|
| hasSection |
Inner Loop
ⓘ
Outer Loop ⓘ |
| hasSpeedLimit | typically 55 mph ⓘ |
| hasToll | no (general lanes) ⓘ |
| isMajorArteryFor |
interstate traffic along I-95 corridor
ⓘ
regional commuter traffic ⓘ |
| length | approximately 64 miles ⓘ |
| locatedIn | Washington metropolitan area ⓘ |
| maintainedBy |
Federal Highway Administration
ⓘ
Maryland State Highway Administration ⓘ Virginia Department of Transportation ⓘ |
| notableFor |
heavy traffic congestion
ⓘ
major reconstruction and widening projects ⓘ |
| opened | 1964 ⓘ |
| partOf | Interstate Highway System ⓘ |
| passesThrough |
Maryland
ⓘ
Virginia ⓘ |
| regionServed |
Maryland suburbs of Washington, D.C.
ⓘ
Northern Virginia ⓘ
surface form:
Northern Virginia suburbs of Washington, D.C.
|
| roadType | freeway ⓘ |
| serves |
Washington metropolitan area
ⓘ
surface form:
Washington metropolitan region
|
| surroundedAreaColloquialName |
Inside the Beltway
ⓘ
Outside the Beltway ⓘ |
| surrounds | District of Columbia ⓘ |
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: Capital Beltway Description of subject: The Capital Beltway is a major circumferential highway encircling Washington, D.C., serving as a key transportation artery for the metropolitan region.
Referenced by (35)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Chevy Chase, Maryland
subject surface form:
West End (Alexandria, Virginia)
subject surface form:
Interstate 495 (Capital Beltway)
this entity surface form:
Capital Beltway (Interstate 495)
this entity surface form:
Capital Beltway (Interstate 495/95)
subject surface form:
Capital Beltway
this entity surface form:
Washington Beltway
this entity surface form:
Maryland segment of Capital Beltway
subject surface form:
Largo, Maryland
subject surface form:
The Boulevard at the Capital Centre