Holborn Viaduct
E251229
Holborn Viaduct is a 19th-century iron and stone road bridge in central London that carries traffic over the valley of the River Fleet between Holborn and the City.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Holborn Viaduct canonical | 17 |
| Holborn Viaduct road bridge | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2247832 — 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: Holborn Viaduct Context triple: [Holborn, London, England, hasLandmark, Holborn Viaduct]
-
A.
Hammersmith Bridge
Hammersmith Bridge is a historic 19th-century suspension bridge in west London that carries traffic across the River Thames between Hammersmith and Barnes.
-
B.
Cannon Street Railway Bridge
Cannon Street Railway Bridge is a steel girder railway bridge over the River Thames in central London, carrying trains into Cannon Street station.
-
C.
Southwark Bridge
Southwark Bridge is a road bridge over the River Thames in central London, known for connecting the City of London with the Southwark district.
-
D.
Westminster Bridge
Westminster Bridge is a historic road and foot traffic bridge in central London that spans the River Thames between Westminster and Lambeth, adjacent to landmarks like the Houses of Parliament and Big Ben.
-
E.
Blackfriars Bridge
Blackfriars Bridge is a road and foot traffic bridge over the River Thames in central London, linking the City of London with the South Bank.
- 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: Holborn Viaduct Target entity description: Holborn Viaduct is a 19th-century iron and stone road bridge in central London that carries traffic over the valley of the River Fleet between Holborn and the City.
-
A.
Hammersmith Bridge
Hammersmith Bridge is a historic 19th-century suspension bridge in west London that carries traffic across the River Thames between Hammersmith and Barnes.
-
B.
Cannon Street Railway Bridge
Cannon Street Railway Bridge is a steel girder railway bridge over the River Thames in central London, carrying trains into Cannon Street station.
-
C.
Southwark Bridge
Southwark Bridge is a road bridge over the River Thames in central London, known for connecting the City of London with the Southwark district.
-
D.
Westminster Bridge
Westminster Bridge is a historic road and foot traffic bridge in central London that spans the River Thames between Westminster and Lambeth, adjacent to landmarks like the Houses of Parliament and Big Ben.
-
E.
Blackfriars Bridge
Blackfriars Bridge is a road and foot traffic bridge over the River Thames in central London, linking the City of London with the South Bank.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
grade II listed structure
ⓘ
road bridge ⓘ viaduct ⓘ |
| architect |
Rowland Mason Ordish
ⓘ
William Haywood ⓘ |
| architecturalStyle | Victorian ⓘ |
| carried | Holborn Circus traffic ⓘ |
| carries | A40 road ⓘ |
| category |
Bridges in London
ⓘ
Grade II listed bridges in London ⓘ Viaducts in the United Kingdom ⓘ |
| connects |
City of London
ⓘ
Holborn ⓘ |
| constructionStart | 1863 ⓘ |
| coordinateLocation | 51.516°N 0.104°W ⓘ |
| country | United Kingdom ⓘ |
| crosses |
Farringdon Street
ⓘ
Railway lines into City Thameslink ⓘ valley of the River Fleet ⓘ |
| hasFeature |
decorative ironwork
ⓘ
ornamental staircases to Farringdon Street ⓘ stone parapets ⓘ |
| hasPart |
Holborn Viaduct railway station (former)
ⓘ
linked to:
Holborn Viaduct station
|
| hasStatue |
statue of Agriculture
ⓘ
statue of Commerce ⓘ statue of Fine Arts ⓘ statue of Science ⓘ |
| heritageDesignation |
Grade II listed building
ⓘ
listed structure ⓘ |
| inception | 1863 ⓘ |
| locatedInArea | City of London ⓘ |
| location |
England
ⓘ
London ⓘ
linked to:
London, England
United Kingdom ⓘ |
| maintainedBy |
City of London Corporation
ⓘ
linked to:
Corporation of London
|
| materialUsed |
iron
ⓘ
stone ⓘ |
| namedAfter | Holborn ⓘ |
| near |
City Thameslink railway station
ⓘ
linked to:
City Thameslink
St Andrew Holborn church ⓘ
linked to:
St Andrew Holborn
|
| opened | 1869 ⓘ |
| openedBy | Queen Victoria ⓘ |
| openingDate | 6 November 1869 ⓘ |
| ownedBy |
City of London Corporation
ⓘ
linked to:
Corporation of London
|
| partOf | Holborn Circus road system ⓘ |
| purpose | to carry road traffic over the Fleet valley ⓘ |
| replaced | steep hill down into the Fleet valley ⓘ |
| transportNetwork | London road network ⓘ |
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: Holborn Viaduct Description of subject: Holborn Viaduct is a 19th-century iron and stone road bridge in central London that carries traffic over the valley of the River Fleet between Holborn and the City.
Referenced by (18)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Holborn Viaduct
subject linked to:
Farringdon Street, London, England
subject linked to:
Farringdon Street, London, England