Triple
T4671434
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Southern Railway (UK) |
E102970
|
entity |
| Predicate | electrification system |
P5320
|
FINISHED |
| Object | 750 V DC third rail |
—
|
LITERAL FINISHED |
How this triple was built (2 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: 750 V DC third rail | Statement: [Southern Railway (UK), electrification system, 750 V DC third rail]
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: electrification system Context triple: [Southern Railway (UK), electrification system, 750 V DC third rail]
-
A.
electrificationSystem
chosen
Indicates the type of electrical power system used to supply energy (typically to infrastructure or vehicles) for operation.
-
B.
electrification
Indicates the process or state of providing electrical power or converting something to operate using electricity.
-
C.
electricalSystem
Indicates that one entity functions as, is part of, or is directly related to the electrical system of another entity.
-
D.
electrificationEnd
Indicates the point in time or event at which an electrification process or electrified state comes to an end.
-
E.
electrificationCompleted
Indicates that the process of providing electrical power infrastructure to the relevant entity or area has been fully completed.
- F. None of above.
Provenance (3 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_69bd43d9cba4819086c1ab1c2d9d2133 |
completed | March 20, 2026, 12:55 p.m. |
| NER | Named-entity recognition | batch_69bd655aceb081908100ffc0498fe183 |
completed | March 20, 2026, 3:18 p.m. |
| PD | Predicate disambiguation | batch_69bd6215864c8190b50ba0f63ba87d0c |
completed | March 20, 2026, 3:04 p.m. |
Created at: March 20, 2026, 1:15 p.m.