Triple
T20437494
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Risca and Pontymister railway station |
E501290
|
entity |
| Predicate | railwayLine |
P848
|
FINISHED |
| Object | Ebbw Valley Railway |
—
|
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: Ebbw Valley Railway | Statement: [Risca and Pontymister railway station, railwayLine, Ebbw Valley Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Ebbw Valley Railway Context triple: [Risca and Pontymister railway station, railwayLine, Ebbw Valley Railway]
-
A.
Ebbw Valley Railway
chosen
The Ebbw Valley Railway is a passenger rail line in South Wales that connects communities in the Ebbw Valley with larger hubs such as Cardiff, supporting regional commuting and regeneration.
-
B.
Rhymney Railway
Rhymney Railway was a historic Welsh railway company that primarily served the coal-mining communities of the Rhymney Valley and surrounding areas.
-
C.
Sirhowy Railway
The Sirhowy Railway was a historic Welsh railway line that played a key role in transporting coal and iron through the Sirhowy Valley during the industrial era.
-
D.
Ebbw Vale line
The Ebbw Vale line is a railway route in South Wales that connects Ebbw Vale with larger towns and cities, providing both commuter and regional passenger services.
-
E.
Nantlle Railway
The Nantlle Railway was a historic narrow-gauge line in North Wales built primarily to carry slate from the Nantlle Valley quarries to the coast for export.
- 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_69e0b4ab3cfc8190ac9bf32e932316b1 |
completed | April 16, 2026, 10:06 a.m. |
| NER | Named-entity recognition | batch_69e685f042988190948253a3d2ee4e9e |
completed | April 20, 2026, 8 p.m. |
Created at: April 16, 2026, 11:31 a.m.