Triple
T409650
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | London Euston |
E9460
|
entity |
| Predicate | servedByOperator |
P5884
|
FINISHED |
| Object |
London Overground
London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
|
E51947
|
NE FINISHED |
How this triple was built (4 steps)
Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.
NER
Named-entity recognition
gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: London Overground | Statement: [London Euston, servedByOperator, London Overground]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London Overground Context triple: [London Euston, servedByOperator, London Overground]
-
A.
London Underground
The London Underground is a rapid transit system serving Greater London and surrounding areas, famous as one of the world's oldest and most extensive metro networks.
-
B.
Transport for London
Transport for London is the local government body responsible for managing and overseeing the public transport network and major roads in Greater London.
-
C.
Bury Line
The Bury Line is a light rail route on Greater Manchester's Metrolink network that connects central Manchester with the town of Bury to the north.
-
D.
Tyne and Wear Metro
Tyne and Wear Metro is a light rail rapid transit system serving Newcastle upon Tyne, Sunderland, and surrounding areas in North East England.
-
E.
Heathrow Express
Heathrow Express is a non-stop high-speed train service linking London Paddington station with Heathrow Airport, providing one of the fastest rail connections between central London and the airport.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: London Overground Triple: [London Euston, servedByOperator, London Overground]
Generated description
London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: London Overground Target entity description: London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
-
A.
London Underground
The London Underground is a rapid transit system serving Greater London and surrounding areas, famous as one of the world's oldest and most extensive metro networks.
-
B.
Transport for London
Transport for London is the local government body responsible for managing and overseeing the public transport network and major roads in Greater London.
-
C.
Bury Line
The Bury Line is a light rail route on Greater Manchester's Metrolink network that connects central Manchester with the town of Bury to the north.
-
D.
Tyne and Wear Metro
Tyne and Wear Metro is a light rail rapid transit system serving Newcastle upon Tyne, Sunderland, and surrounding areas in North East England.
-
E.
Heathrow Express
Heathrow Express is a non-stop high-speed train service linking London Paddington station with Heathrow Airport, providing one of the fastest rail connections between central London and the airport.
- F. None of above. chosen
Provenance (5 batches)
The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.
| Step | Stage | Batch ID | Status | When |
|---|---|---|---|---|
| creating | Elicitation | batch_69a2e80111fc8190961d5b7c6154123f |
completed | Feb. 28, 2026, 1:05 p.m. |
| NER | Named-entity recognition | batch_69a2ecc098c4819088d127c5ea55ced9 |
completed | Feb. 28, 2026, 1:25 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a41777d794819099a07555ad2defe2 |
completed | March 1, 2026, 10:39 a.m. |
| NEDg | Description generation | batch_69a418da55088190935babe9abae5ac4 |
completed | March 1, 2026, 10:45 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a4196334948190a1f6004b1a292550 |
completed | March 1, 2026, 10:48 a.m. |
Created at: Feb. 28, 2026, 1:08 p.m.