Triple
T21657136
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | British Rail Class 86 |
E534495
|
entity |
| Predicate | operator |
P179
|
FINISHED |
| Object | Rail Operations Group |
—
|
NE NERFINISHED |
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: Rail Operations Group | Statement: [British Rail Class 86, operator, Rail Operations Group]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Rail Operations Group Context triple: [British Rail Class 86, operator, Rail Operations Group]
-
A.
Rail Operations Group
chosen
Rail Operations Group is a UK-based rail company specializing in the movement, testing, and introduction of new and refurbished rolling stock for train operators and manufacturers.
-
B.
rail operations directorate
The rail operations directorate is a specialized administrative body responsible for managing and regulating the safe and efficient movement of trains across a railway network.
-
C.
Progress Rail Services Corporation
Progress Rail Services Corporation is a major North American provider of railroad and transit products and services, including locomotive and railcar manufacturing, maintenance, and repair, and is a subsidiary of Caterpillar Inc.
-
D.
Transrail Freight
Transrail Freight was a British rail freight company that emerged from the privatization and restructuring of the former state-owned freight operations.
-
E.
Rolling Stock Company
Rolling Stock Company is the Kawasaki Heavy Industries division responsible for designing and manufacturing railway vehicles and related transportation systems.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
Provenance (2 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_69e0c467e1f48190af2650b19175abc4 |
completed | April 16, 2026, 11:13 a.m. |
| NER | Named-entity recognition | batch_69ef5919c9c88190a2ddcf2cefee79a5 |
completed | April 27, 2026, 12:39 p.m. |
Created at: April 16, 2026, 6:36 p.m.