Blisworth Tunnel
E320705
Blisworth Tunnel is one of the longest navigable canal tunnels in Britain, carrying the Grand Union Canal beneath the Northamptonshire countryside.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Blisworth Tunnel canonical | 2 |
| Blisworth Tunnel southern portal | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T3019266 — 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: Blisworth Tunnel Context triple: [Grand Union Canal, hasTunnel, Blisworth Tunnel]
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A.
Harecastle Tunnel
Harecastle Tunnel is a historic and notoriously long canal tunnel in Staffordshire, England, known for its low, narrow passage and role in improving industrial-era transport on the Trent and Mersey Canal.
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B.
Foulridge Tunnel
Foulridge Tunnel is a historic canal tunnel in Lancashire, England, carrying the Leeds and Liverpool Canal beneath the village of Foulridge and surrounding hills.
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C.
Reigate Tunnel
Reigate Tunnel is a historic road tunnel in Reigate, Surrey, notable as one of the earliest road tunnels in Britain and now a distinctive local landmark.
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D.
Hindhead Tunnel
Hindhead Tunnel is a major road tunnel in Surrey, England, carrying the A3 beneath the Devil’s Punch Bowl to improve traffic flow and reduce environmental impact on the surrounding countryside.
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E.
Dartford Tunnel
The Dartford Tunnel is a major road tunnel under the River Thames in southeast England, forming part of a key river crossing on the London orbital route.
- 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: Blisworth Tunnel Target entity description: Blisworth Tunnel is one of the longest navigable canal tunnels in Britain, carrying the Grand Union Canal beneath the Northamptonshire countryside.
-
A.
Harecastle Tunnel
Harecastle Tunnel is a historic and notoriously long canal tunnel in Staffordshire, England, known for its low, narrow passage and role in improving industrial-era transport on the Trent and Mersey Canal.
-
B.
Foulridge Tunnel
Foulridge Tunnel is a historic canal tunnel in Lancashire, England, carrying the Leeds and Liverpool Canal beneath the village of Foulridge and surrounding hills.
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C.
Reigate Tunnel
Reigate Tunnel is a historic road tunnel in Reigate, Surrey, notable as one of the earliest road tunnels in Britain and now a distinctive local landmark.
-
D.
Hindhead Tunnel
Hindhead Tunnel is a major road tunnel in Surrey, England, carrying the A3 beneath the Devil’s Punch Bowl to improve traffic flow and reduce environmental impact on the surrounding countryside.
-
E.
Dartford Tunnel
The Dartford Tunnel is a major road tunnel under the River Thames in southeast England, forming part of a key river crossing on the London orbital route.
- F. None of above. chosen
Statements (48)
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: Blisworth Tunnel Description of subject: Blisworth Tunnel is one of the longest navigable canal tunnels in Britain, carrying the Grand Union Canal beneath the Northamptonshire countryside.
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
Blisworth Tunnel southern portal