Central line – Piccadilly line
E600980
The Central line – Piccadilly line interchange at Holborn station is a key London Underground connection point where passengers can transfer between the east–west Central line and the north–south Piccadilly line.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Central line and Piccadilly line | 1 |
| Central line – Piccadilly line canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6629924 — 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: Central line – Piccadilly line Context triple: [Holborn station, hasInterchange, Central line – Piccadilly line]
-
A.
London Underground Central line
The London Underground Central line is a major east–west Tube line running across Greater London, connecting key central and suburban areas as part of the city’s rapid transit network.
-
B.
Central line (West Ruislip branch)
The Central line (West Ruislip branch) is a western suburban branch of London Underground’s Central line, running from central London out to West Ruislip and serving areas including the London Borough of Hillingdon.
-
C.
Northern line
The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
-
D.
Piccadilly line
The Piccadilly line is a major deep-level London Underground route running from the north and west suburbs through central London, serving key destinations including Heathrow Airport.
-
E.
Jubilee line
The Jubilee line is a major London Underground line running across the city from northwest to east, serving key financial and commercial hubs including Canary Wharf.
- 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: Central line – Piccadilly line Target entity description: The Central line – Piccadilly line interchange at Holborn station is a key London Underground connection point where passengers can transfer between the east–west Central line and the north–south Piccadilly line.
-
A.
London Underground Central line
The London Underground Central line is a major east–west Tube line running across Greater London, connecting key central and suburban areas as part of the city’s rapid transit network.
-
B.
Central line (West Ruislip branch)
The Central line (West Ruislip branch) is a western suburban branch of London Underground’s Central line, running from central London out to West Ruislip and serving areas including the London Borough of Hillingdon.
-
C.
Northern line
The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
-
D.
Piccadilly line
The Piccadilly line is a major deep-level London Underground route running from the north and west suburbs through central London, serving key destinations including Heathrow Airport.
-
E.
Jubilee line
The Jubilee line is a major London Underground line running across the city from northwest to east, serving key financial and commercial hubs including Canary Wharf.
- F. None of above. chosen
Statements (25)
| Predicate | Object |
|---|---|
| instanceOf |
London Underground interchange
ⓘ
interchange ⓘ |
| allowsTransferBetween |
Central line and Piccadilly line
ⓘ
linked to:
Central line – Piccadilly line
|
| connectsDirection |
east–west Central line
ⓘ
north–south Piccadilly line ⓘ
linked to:
Piccadilly line
|
| connectsLine |
Central line
ⓘ
Piccadilly line ⓘ |
| country | United Kingdom ⓘ |
| fareZone | Travelcard Zone 1 ⓘ |
| hasFunction | passenger interchange ⓘ |
| hasInterchangeType | in-station interchange ⓘ |
| isKeyConnectionPoint | true ⓘ |
| lineOrientationConnected |
east–west
ⓘ
north–south ⓘ |
| locatedIn |
Holborn station
ⓘ
London ⓘ
linked to:
London, England
London Underground ⓘ |
| network |
London Underground network
ⓘ
linked to:
London Underground
|
| operator | London Underground ⓘ |
| owner | Transport for London ⓘ |
| partOfStation |
Holborn Underground station
ⓘ
linked to:
Holborn station
|
| servesCity |
London
ⓘ
linked to:
London, England
|
| stationServed | Holborn ⓘ |
| transportMode |
metro
ⓘ
rapid transit ⓘ |
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: Central line – Piccadilly line Description of subject: The Central line – Piccadilly line interchange at Holborn station is a key London Underground connection point where passengers can transfer between the east–west Central line and the north–south Piccadilly line.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Central line – Piccadilly line