Piccadilly line at Ealing Common station
E1036109
The Piccadilly line at Ealing Common station is a London Underground line serving west London, providing fast, long-distance services between central London, Heathrow Airport, and Uxbridge.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Piccadilly line at Ealing Common station canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T13346141 — 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: Piccadilly line at Ealing Common station Context triple: [Ealing Broadway branch of the District line, connectsWith, Piccadilly line at Ealing Common station]
-
A.
Ealing Broadway branch of the District line
The Ealing Broadway branch of the District line is a western suburban section of London’s Underground network that runs between central London and Ealing Broadway, serving key stations in west London.
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B.
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.
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C.
Barons Court station on the Piccadilly line
Barons Court station on the Piccadilly line is a London Underground station in West London known for its distinctive early 20th-century architecture and role as an interchange between the Piccadilly and District lines.
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D.
London Underground Metropolitan line
The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
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E.
Central line – Piccadilly line
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.
- 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: Piccadilly line at Ealing Common station Target entity description: The Piccadilly line at Ealing Common station is a London Underground line serving west London, providing fast, long-distance services between central London, Heathrow Airport, and Uxbridge.
-
A.
Ealing Broadway branch of the District line
The Ealing Broadway branch of the District line is a western suburban section of London’s Underground network that runs between central London and Ealing Broadway, serving key stations in west London.
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B.
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.
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C.
Barons Court station on the Piccadilly line
Barons Court station on the Piccadilly line is a London Underground station in West London known for its distinctive early 20th-century architecture and role as an interchange between the Piccadilly and District lines.
-
D.
London Underground Metropolitan line
The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
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E.
Central line – Piccadilly line
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.
- F. None of above. chosen
Statements (39)
| Predicate | Object |
|---|---|
| instanceOf | London Underground service pattern ⓘ |
| access | interchange with District line services ⓘ |
| connectsArea |
Acton
NERFINISHED
ⓘ
Ealing NERFINISHED ⓘ Hammersmith NERFINISHED ⓘ King's Cross St Pancras NERFINISHED ⓘ Piccadilly Circus NERFINISHED ⓘ South Kensington NERFINISHED ⓘ |
| connectsWith | District line at Ealing Common station NERFINISHED ⓘ |
| country | United Kingdom ⓘ |
| electrification | 630 V DC fourth rail ⓘ |
| fareZone | Zone 3 ⓘ |
| gauge | standard gauge ⓘ |
| lineColour | dark blue ⓘ |
| locatedIn |
Ealing Common
NERFINISHED
ⓘ
London NERFINISHED ⓘ London Borough of Ealing NERFINISHED ⓘ West London ⓘ |
| network | London Underground NERFINISHED ⓘ |
| operator | London Underground Limited NERFINISHED ⓘ |
| owner | Transport for London ⓘ |
| partOf | Piccadilly line NERFINISHED ⓘ |
| platformConfiguration | served by deep-level tube trains at surface-level platforms ⓘ |
| primaryFunction | urban rapid transit ⓘ |
| providesServiceTo |
Central London
NERFINISHED
ⓘ
Heathrow Airport NERFINISHED ⓘ Uxbridge NERFINISHED ⓘ |
| regionServed | West London NERFINISHED ⓘ |
| rollingStock | 1973 Stock ⓘ |
| safetySystem | Automatic Train Protection NERFINISHED ⓘ |
| servesStation | Ealing Common station NERFINISHED ⓘ |
| servicePattern |
stopping service
ⓘ
through service between central London and Heathrow Airport ⓘ through service between central London and Uxbridge ⓘ |
| serviceType |
fast
ⓘ
long-distance ⓘ |
| ticketSystem |
Contactless payment
ⓘ
Oyster card NERFINISHED ⓘ |
| usesTrack | shared tracks with District line between Ealing Common and Acton Town ⓘ |
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: Piccadilly line at Ealing Common station Description of subject: The Piccadilly line at Ealing Common station is a London Underground line serving west London, providing fast, long-distance services between central London, Heathrow Airport, and Uxbridge.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.
Ealing Broadway branch of the District line
→
connectsWith
→
Piccadilly line at Ealing Common station
ⓘ