Triple
T10411214
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Tom Rolt |
E245393
|
entity |
| Predicate | namedAfter |
P63
|
FINISHED |
| Object | railway preservation pioneer L. T. C. Rolt |
E245393
|
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: railway preservation pioneer L. T. C. Rolt | Statement: [Tom Rolt, namedAfter, railway preservation pioneer L. T. C. Rolt]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: railway preservation pioneer L. T. C. Rolt Context triple: [Tom Rolt, namedAfter, railway preservation pioneer L. T. C. Rolt]
-
A.
Nigel Gresley
Nigel Gresley was a renowned British steam locomotive engineer best known for designing record-breaking express engines such as the LNER Class A4 Mallard.
-
B.
Richard Beeching
Richard Beeching was a British physicist, industrialist, and chairman of British Railways best known for authoring the 1960s reports that led to widespread railway line closures in the UK.
-
C.
L. T. C. Rolt Snodgrass
L. T. C. Rolt Snodgrass is a person notable primarily for bearing the distinctive surname Snodgrass, though little else is widely documented about them.
-
D.
Tom Rolt
chosen
Tom Rolt is a steam locomotive on the preserved narrow-gauge Talyllyn Railway in Wales, named after railway preservation pioneer L.T.C. Rolt.
-
E.
Peter Drummond (locomotive engineer)
Peter Drummond was a Scottish locomotive engineer best known for his work as locomotive superintendent of the Highland Railway in the early 20th century, where he designed several notable steam locomotive classes.
- 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_69d381be340c8190b05998703d42d224 |
completed | April 6, 2026, 9:49 a.m. |
| NER | Named-entity recognition | batch_69d4e9fc72d081908d81c71133973daf |
completed | April 7, 2026, 11:26 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69d7fbfae96c8190ac496e9a1158afe4 |
completed | April 9, 2026, 7:20 p.m. |
Created at: April 6, 2026, 12:09 p.m.