Triple
T12557418
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Upminster Depot |
E295253
|
entity |
| Predicate | servesTerminus |
P20599
|
FINISHED |
| Object | Upminster Underground station |
E908281
|
NE FINISHED |
How this triple was built (3 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: Upminster Underground station | Statement: [Upminster Depot, servesTerminus, Upminster Underground station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Upminster Underground station Context triple: [Upminster Depot, servesTerminus, Upminster Underground station]
-
A.
Upminster station
chosen
Upminster station is a major transport hub in east London serving as an interchange between National Rail services and the eastern terminus of the London Underground’s District line.
-
B.
Upton Park Underground station
Upton Park Underground station is a London Underground station in East London that historically served crowds attending West Ham United football matches at the nearby Boleyn Ground.
-
C.
Balham Underground station
Balham Underground station is a London Underground station in south London served by the Northern line, providing access to the Balham area and connections with National Rail services.
-
D.
Shoreditch High Street station
Shoreditch High Street station is an East London Overground railway station serving the Shoreditch area, known for its proximity to the vibrant Brick Lane and surrounding creative and nightlife districts.
-
E.
Highgate Underground Station
Highgate Underground Station is a London Underground station in north London serving the Northern line and the Highgate area.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: servesTerminus Context triple: [Upminster Depot, servesTerminus, Upminster Underground station]
-
A.
locatedAtTerminusOf
Indicates that one entity is situated at the end point or final terminus of another entity, such as a route, line, or path.
-
B.
servesTerminal
chosen
Indicates that one entity functions as a terminal or endpoint facility that is served or operated by another entity.
-
C.
terminus
Indicates that one entity serves as the final endpoint or stopping place for another entity’s movement, route, or process.
-
D.
formerTerminusFor
Indicates that a location once served as the endpoint or final stop of a route, line, or service, but no longer holds that status.
-
E.
terminusCity
Indicates that a transportation route or service ends or has its final stop in a particular city.
- F. None of above.
Provenance (4 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_69d6ad9cac2c81908e8a7bed82d1e21d |
completed | April 8, 2026, 7:33 p.m. |
| NER | Named-entity recognition | batch_69d95f5507b481908d13cc317b7402f6 |
completed | April 10, 2026, 8:36 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69f6a537bb1881908a50073d4f27b66c |
completed | May 3, 2026, 1:30 a.m. |
| PD | Predicate disambiguation | batch_69d95410d0b0819097646edd1b837104 |
completed | April 10, 2026, 7:48 p.m. |
Created at: April 8, 2026, 11:47 p.m.