Triple
T10693566
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nant Gwernol railway station |
E252072
|
entity |
| Predicate | precedingStation |
P66132
|
FINISHED |
| Object | Abergynolwyn railway station |
E254660
|
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: Abergynolwyn railway station | Statement: [Nant Gwernol railway station, precedingStation, Abergynolwyn railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Abergynolwyn railway station Context triple: [Nant Gwernol railway station, precedingStation, Abergynolwyn railway station]
-
A.
Abergynolwyn railway station
chosen
Abergynolwyn railway station is a historic stop on the narrow-gauge Talyllyn Railway in Gwynedd, Wales, serving the former slate-mining village of Abergynolwyn.
-
B.
Nant Gwernol railway station
Nant Gwernol railway station is the upper mountain terminus of the historic narrow-gauge Talyllyn Railway in Mid Wales, serving as a scenic endpoint for heritage steam train services.
-
C.
Clogwyn station
Clogwyn station is a high-altitude intermediate stop on the Snowdon Mountain Railway in Wales, serving as a popular viewpoint and turnaround point for trains ascending Mount Snowdon.
-
D.
Ystrad Mynach railway station
Ystrad Mynach railway station is a commuter rail stop in Caerphilly County Borough, Wales, providing local and regional services on the Valley Lines network.
-
E.
Tywyn railway station
Tywyn railway station is a small coastal railway stop in Gwynedd, Wales, serving the town of Tywyn on the Cambrian Line.
- 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_69d6aa5bd7c08190a816e733b4045c23 |
completed | April 8, 2026, 7:19 p.m. |
| NER | Named-entity recognition | batch_69d6fd38c24c8190a105a9dfdf705b38 |
completed | April 9, 2026, 1:13 a.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69de847e0ee48190a4c1470fc5296213 |
completed | April 14, 2026, 6:16 p.m. |
Created at: April 8, 2026, 9:11 p.m.