Great Northern, Piccadilly and Brompton Railway
E309946
The Great Northern, Piccadilly and Brompton Railway was an early 20th-century deep-level London Underground railway company that formed the core of what is now the Piccadilly line.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Great Northern, Piccadilly and Brompton Railway canonical | 11 |
| London Electric Railway | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T2844773 — 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: Great Northern, Piccadilly and Brompton Railway Context triple: [Piccadilly line, originalName, Great Northern, Piccadilly and Brompton Railway]
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A.
Charing Cross, Euston and Hampstead Railway
The Charing Cross, Euston and Hampstead Railway was an early deep-level “tube” railway in London that later became a core part of the London Underground’s Northern line.
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B.
Metropolitan Railway
The Metropolitan Railway was the pioneering underground railway in London and the world’s first urban underground passenger railway, forming the core of what became the London Underground.
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C.
Central London Railway
Central London Railway was an early deep-level underground railway in London that later became the core of the London Underground's Central line.
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D.
North London Railway
The North London Railway was a British railway company that operated suburban and freight services across north London during the 19th and early 20th centuries.
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E.
City and South London Railway
The City and South London Railway was the world's first deep-level electric tube railway in London, forming a key precursor to today's Northern line of the London Underground.
- 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: Great Northern, Piccadilly and Brompton Railway Target entity description: The Great Northern, Piccadilly and Brompton Railway was an early 20th-century deep-level London Underground railway company that formed the core of what is now the Piccadilly line.
-
A.
Charing Cross, Euston and Hampstead Railway
The Charing Cross, Euston and Hampstead Railway was an early deep-level “tube” railway in London that later became a core part of the London Underground’s Northern line.
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B.
Metropolitan Railway
The Metropolitan Railway was the pioneering underground railway in London and the world’s first urban underground passenger railway, forming the core of what became the London Underground.
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C.
Central London Railway
Central London Railway was an early deep-level underground railway in London that later became the core of the London Underground's Central line.
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D.
North London Railway
The North London Railway was a British railway company that operated suburban and freight services across north London during the 19th and early 20th centuries.
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E.
City and South London Railway
The City and South London Railway was the world's first deep-level electric tube railway in London, forming a key precursor to today's Northern line of the London Underground.
- F. None of above. chosen
Statements (44)
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: Great Northern, Piccadilly and Brompton Railway Description of subject: The Great Northern, Piccadilly and Brompton Railway was an early 20th-century deep-level London Underground railway company that formed the core of what is now the Piccadilly line.
Referenced by (12)
Full triples — surface form annotated when it differs from this entity's canonical label.
Piccadilly Circus Underground station
→
openedBy
→
Great Northern, Piccadilly and Brompton Railway
ⓘ
Hyde Park Corner Underground station
→
originalCompany
→
Great Northern, Piccadilly and Brompton Railway
ⓘ
Holloway Road Underground station
→
hasOriginalRailwayCompany
→
Great Northern, Piccadilly and Brompton Railway
ⓘ
this entity surface form:
London Electric Railway
Barons Court station on the Piccadilly line
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hasLaterServingCompany
→
Great Northern, Piccadilly and Brompton Railway
ⓘ
subject surface form:
Barons Court station