Blackwall Tunnel
E545737
The Blackwall Tunnel is a major road tunnel under the River Thames in east London that carries traffic between the Greenwich Peninsula and the Poplar area.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Blackwall Tunnel canonical | 2 |
| Blackwall Tunnel approach road | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5756298 — 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: Blackwall Tunnel Context triple: [Woolwich Ferry, isAlternativeTo, Blackwall Tunnel]
-
A.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
-
B.
Prudential Tunnel
Prudential Tunnel is a vehicular tunnel in Boston, Massachusetts, that carries traffic beneath the Prudential Center complex as part of the Massachusetts Turnpike.
-
C.
Queensway Tunnel
The Queensway Tunnel is a road tunnel in northwest England that carries vehicular traffic beneath the River Mersey between Liverpool and the Wirral Peninsula.
-
D.
Baltimore Harbor Tunnel
The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
-
E.
East Boston Tunnel
The East Boston Tunnel is a historic underwater transit tunnel in Boston that originally carried streetcars and now forms part of the MBTA’s Blue Line subway connection between downtown Boston and East 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: Blackwall Tunnel Target entity description: The Blackwall Tunnel is a major road tunnel under the River Thames in east London that carries traffic between the Greenwich Peninsula and the Poplar area.
-
A.
George Massey Tunnel
The George Massey Tunnel is a highway traffic tunnel in British Columbia, Canada, that carries vehicles beneath the Fraser River between Richmond and Delta.
-
B.
Prudential Tunnel
Prudential Tunnel is a vehicular tunnel in Boston, Massachusetts, that carries traffic beneath the Prudential Center complex as part of the Massachusetts Turnpike.
-
C.
Queensway Tunnel
The Queensway Tunnel is a road tunnel in northwest England that carries vehicular traffic beneath the River Mersey between Liverpool and the Wirral Peninsula.
-
D.
Baltimore Harbor Tunnel
The Baltimore Harbor Tunnel is a vehicular tunnel in Baltimore, Maryland, that carries Interstate 895 beneath the harbor as a major route for traffic bypassing downtown.
-
E.
East Boston Tunnel
The East Boston Tunnel is a historic underwater transit tunnel in Boston that originally carried streetcars and now forms part of the MBTA’s Blue Line subway connection between downtown Boston and East Boston.
- F. None of above. chosen
Statements (45)
| Predicate | Object |
|---|---|
| instanceOf |
river crossing
ⓘ
road infrastructure ⓘ road tunnel ⓘ |
| connects |
Greenwich Peninsula
NERFINISHED
ⓘ
Poplar NERFINISHED ⓘ |
| constructionMaterial |
brick (original tunnel)
ⓘ
concrete (second tunnel) ⓘ |
| country |
England
ⓘ
United Kingdom ⓘ |
| crosses | River Thames NERFINISHED ⓘ |
| hasDirection |
northbound
ⓘ
southbound ⓘ |
| hasImportance | key Thames crossing in east London ⓘ |
| hasIssue |
air pollution concerns
ⓘ
congestion ⓘ |
| hasLanes |
2 lanes northbound
ⓘ
2 lanes southbound ⓘ |
| hasPart |
northbound tunnel
ⓘ
southbound tunnel ⓘ |
| hasRestriction |
height restrictions for vehicles
ⓘ
no cyclists ⓘ no pedestrians ⓘ |
| hasStatus | major road tunnel ⓘ |
| hasTraffic | high traffic volumes ⓘ |
| isPartOfNetwork | Thames river crossings in London ⓘ |
| locatedIn | east London NERFINISHED ⓘ |
| locatedInBorough |
London Borough of Tower Hamlets
NERFINISHED
ⓘ
Royal Borough of Greenwich NERFINISHED ⓘ |
| locatedInCity | London NERFINISHED ⓘ |
| location | River Thames NERFINISHED ⓘ |
| maintainedBy | Transport for London NERFINISHED ⓘ |
| namedAfter | Blackwall area of London NERFINISHED ⓘ |
| nearbyLandmark |
Blackwall
NERFINISHED
ⓘ
Greenwich Peninsula NERFINISHED ⓘ O2 Arena NERFINISHED ⓘ |
| openingDate |
1897
ⓘ
1967 ⓘ |
| owner | Transport for London NERFINISHED ⓘ |
| partOf |
East Cross Route
NERFINISHED
ⓘ
London road network NERFINISHED ⓘ |
| passesUnder | River Thames NERFINISHED ⓘ |
| primaryUse | motor vehicle traffic ⓘ |
| roadCarried | A102 road NERFINISHED ⓘ |
| serves | road traffic ⓘ |
| tunnelType | vehicular tunnel ⓘ |
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: Blackwall Tunnel Description of subject: The Blackwall Tunnel is a major road tunnel under the River Thames in east London that carries traffic between the Greenwich Peninsula and the Poplar area.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
subject surface form:
Woolwich Ferry
subject surface form:
Robin Hood Gardens
this entity surface form:
Blackwall Tunnel approach road