Triple
T12557442
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Upminster Depot |
E295253
|
entity |
| Predicate | isEndOfLineDepotFor |
P46766
|
FINISHED |
| Object | District line |
E60293
|
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: District line | Statement: [Upminster Depot, isEndOfLineDepotFor, District line]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: District line Context triple: [Upminster Depot, isEndOfLineDepotFor, District line]
-
A.
District line
chosen
The District line is a major London Underground service running across central and western London, known for its green color on the Tube map and extensive coverage of suburban areas.
-
B.
District line (London Underground)
The District line is a major London Underground line running across the city from east to west, serving numerous suburban areas and key central London destinations.
-
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.
South London Line
The South London Line is a suburban railway route in south London that connects several inner-city districts and provides key commuter services across the area.
-
E.
Metropolitan line
The Metropolitan line is one of the oldest lines of the London Underground, running from central London into the northwestern suburbs and beyond.
- 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: isEndOfLineDepotFor Context triple: [Upminster Depot, isEndOfLineDepotFor, District line]
-
A.
isLinedWith
Indicates that one object or surface is covered, edged, or internally coated along its length or area with another material or layer.
-
B.
hasDeFactoLine
Indicates that there exists an unofficial or non-legally recognized boundary or demarcation line functioning in practice between the related entities.
-
C.
lineTerminusFor
chosen
Indicates that one entity serves as an endpoint or terminus of a particular line or linear feature represented by another entity.
-
D.
isModernLine
Indicates that something belongs to, represents, or conforms to a contemporary or current-era style, design, or version within a series or category.
-
E.
lineTerminusDirection
Indicates the directional orientation or bearing at which a line segment or route terminates at its endpoint.
- 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_69f6718ef43481909023a82425283f5b |
completed | May 2, 2026, 9:50 p.m. |
| PD | Predicate disambiguation | batch_69d95410d0b0819097646edd1b837104 |
completed | April 10, 2026, 7:48 p.m. |
Created at: April 8, 2026, 11:47 p.m.