Triple
T8911027
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Sidcup Line suburban services |
E212180
|
entity |
| Predicate | usesRollingStock |
P5426
|
FINISHED |
| Object | British Rail Class 707 |
E664586
|
NE 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: British Rail Class 707 | Statement: [Sidcup Line suburban services, usesRollingStock, British Rail Class 707]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: British Rail Class 707 Context triple: [Sidcup Line suburban services, usesRollingStock, British Rail Class 707]
-
A.
British Rail Class 707
chosen
The British Rail Class 707 is a fleet of modern electric multiple-unit commuter trains built by Siemens for high-frequency suburban services in the South East of England.
-
B.
British Rail Class 720
The British Rail Class 720 is a modern electric multiple unit train built for high-capacity commuter and regional services on the UK rail network.
-
C.
British Rail Class 745
The British Rail Class 745 is a modern electric multiple unit train built for Greater Anglia, designed for high-capacity, intercity and airport services on the UK rail network.
-
D.
British Rail Class 379
The British Rail Class 379 is a fleet of electric multiple-unit passenger trains built for high-frequency commuter and airport services on the UK rail network.
-
E.
British Rail Class 171
The British Rail Class 171 is a diesel multiple unit train used primarily by Southern in the UK, closely related to the Class 170 but equipped with different coupling systems for compatibility with other Southern stock.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
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_69ca8393b1808190bd4336787ffa2c40 |
completed | March 30, 2026, 2:07 p.m. |
| NER | Named-entity recognition | batch_69cc6523b9348190a7cefac9e73e2004 |
completed | April 1, 2026, 12:21 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69cfeb2b4f048190a2d387b64975647a |
completed | April 3, 2026, 4:30 p.m. |
Created at: March 30, 2026, 6:55 p.m.