Key Bridge
E515
Key Bridge is a historic steel-arch bridge spanning the Potomac River, connecting Washington, D.C. to Arlington, Virginia.
All labels observed (5)
| Label | Occurrences |
|---|---|
| Key Bridge canonical | 19 |
| Aqueduct Bridge | 1 |
| Chain Bridge | 1 |
| Francis Scott Key Bridge | 1 |
| Francis Scott Key Bridge (Washington, D.C.) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3457 — 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: Key Bridge Context triple: [Arlington, Virginia, hasMajorBridge, Key Bridge]
-
A.
Brooklyn Bridge
The Brooklyn Bridge is a historic 19th-century suspension bridge spanning the East River, renowned as an iconic symbol of New York City and a major connection between Manhattan and Brooklyn.
-
B.
Union Station
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
-
C.
Washington Metro
Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
-
D.
Carnegie
Carnegie is a Scottish surname most famously associated with industrialist and philanthropist Andrew Carnegie.
-
E.
Douglas
Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
- 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: Key Bridge Target entity description: Key Bridge is a historic steel-arch bridge spanning the Potomac River, connecting Washington, D.C. to Arlington, Virginia.
-
A.
Brooklyn Bridge
The Brooklyn Bridge is a historic 19th-century suspension bridge spanning the East River, renowned as an iconic symbol of New York City and a major connection between Manhattan and Brooklyn.
-
B.
Union Station
Union Station is a historic Beaux-Arts transportation hub and major intercity rail terminal in Washington, D.C., serving as a gateway to the U.S. capital.
-
C.
Washington Metro
Washington Metro is the rapid transit system serving the Washington, D.C. metropolitan area, known for its extensive rail network connecting the city with its suburbs in Maryland and Virginia.
-
D.
Carnegie
Carnegie is a Scottish surname most famously associated with industrialist and philanthropist Andrew Carnegie.
-
E.
Douglas
Douglas is a masculine given name of Scottish origin that has been widely used in English-speaking countries.
- F. None of above. chosen
Statements (28)
| Predicate | Object |
|---|---|
| instanceOf |
bridge
ⓘ
road bridge ⓘ steel arch bridge ⓘ |
| carries |
U.S. Route 29
ⓘ
pedestrian traffic ⓘ vehicular traffic ⓘ |
| connects |
Arlington, Virginia
ⓘ
Washington, D.C. ⓘ |
| constructionCompleted | 1923 ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| crosses | Potomac River ⓘ |
| crossesBetween |
Georgetown
ⓘ
linked to:
Georgetown, Washington, D.C.
Rosslyn ⓘ |
| crossesFeature |
C&O Canal (adjacent)
ⓘ
linked to:
Potomac River
|
| hasDesign | open-spandrel arch ⓘ |
| hasHeritageStatus | historic bridge ⓘ |
| hasLocale |
Georgetown, Washington, D.C.
ⓘ
Rosslyn, Arlington, Virginia ⓘ |
| hasNumberOfSpans | 5 ⓘ |
| hasStructureType | arch ⓘ |
| locatedIn |
Arlington County, Virginia
ⓘ
linked to:
Arlington, Virginia
Washington, D.C. ⓘ |
| maintainedBy | District Department of Transportation ⓘ |
| material | steel ⓘ |
| namedAfter | Francis Scott Key ⓘ |
| opened | 1923 ⓘ |
| partOf |
National Capital Region transportation network
ⓘ
linked to:
Washington metropolitan area
|
| replaced |
Aqueduct Bridge
ⓘ
linked to:
Key Bridge
|
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: Key Bridge Description of subject: Key Bridge is a historic steel-arch bridge spanning the Potomac River, connecting Washington, D.C. to Arlington, Virginia.
Referenced by (23)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Key Bridge
linked to: Key Bridge
linked to: Key Bridge
subject linked to:
Observation deck at Central Place
Potomac River crossings toward Washington, D.C.
→
hasComponent
→
Francis Scott Key Bridge (Washington, D.C.)
ⓘ
linked to: Key Bridge
subject linked to:
Georgetown neighborhood