Triple
T90475
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | London |
E1817
|
entity |
| Predicate | hosts |
P186
|
FINISHED |
| Object |
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.
|
E9036
|
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 Underground | Statement: [London, hosts, London Underground]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: London Underground Context triple: [London, hosts, London Underground]
-
A.
Manchester Metrolink
Manchester Metrolink is a light rail/tram network serving Greater Manchester, England, connecting the city centre with surrounding suburbs and key regional destinations.
-
B.
Manchester Piccadilly
Manchester Piccadilly is the main railway terminus and busiest train station in Manchester, England, serving as a key hub for regional and national rail services.
-
C.
Fife Circle Line
The Fife Circle Line is a suburban rail route in Fife, Scotland, forming a loop north of Edinburgh that serves towns such as Dunfermline, Kirkcaldy, and Glenrothes with Thornton.
-
D.
National Rail
National Rail is the collective name for the passenger rail services and network in Great Britain, encompassing most regional and intercity train operations outside of urban metro systems.
-
E.
Manchester Airport tram stop
Manchester Airport tram stop is a Metrolink light-rail station in Greater Manchester that provides direct tram services between Manchester Airport and the wider city network.
- 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 Underground Triple: [London, hosts, London Underground]
Generated description
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.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: London Underground Target entity description: 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.
-
A.
Manchester Metrolink
Manchester Metrolink is a light rail/tram network serving Greater Manchester, England, connecting the city centre with surrounding suburbs and key regional destinations.
-
B.
Manchester Piccadilly
Manchester Piccadilly is the main railway terminus and busiest train station in Manchester, England, serving as a key hub for regional and national rail services.
-
C.
Fife Circle Line
The Fife Circle Line is a suburban rail route in Fife, Scotland, forming a loop north of Edinburgh that serves towns such as Dunfermline, Kirkcaldy, and Glenrothes with Thornton.
-
D.
National Rail
National Rail is the collective name for the passenger rail services and network in Great Britain, encompassing most regional and intercity train operations outside of urban metro systems.
-
E.
Manchester Airport tram stop
Manchester Airport tram stop is a Metrolink light-rail station in Greater Manchester that provides direct tram services between Manchester Airport and the wider city network.
- 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_69a24d1a97dc819094e6c021fe9b05a7 |
completed | Feb. 28, 2026, 2:04 a.m. |
| NER | Named-entity recognition | batch_69a24f6c29888190890caa7872d63ac6 |
completed | Feb. 28, 2026, 2:14 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69a266ebb994819085fb84dd1d2d25ad |
completed | Feb. 28, 2026, 3:54 a.m. |
| NEDg | Description generation | batch_69a267b740388190a321023aa52a539a |
completed | Feb. 28, 2026, 3:57 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69a2685dc64c8190bd611985d1bc27a3 |
completed | Feb. 28, 2026, 4 a.m. |
Created at: Feb. 28, 2026, 2:07 a.m.