Triple
T10693565
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | Nant Gwernol railway station |
E252072
|
entity |
| Predicate | isMountainTerminusOf |
P95321
|
FINISHED |
| Object | Talyllyn Railway |
E48102
|
NE FINISHED |
How this triple was built (3 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: Talyllyn Railway | Statement: [Nant Gwernol railway station, isMountainTerminusOf, Talyllyn Railway]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Talyllyn Railway Context triple: [Nant Gwernol railway station, isMountainTerminusOf, Talyllyn Railway]
-
A.
Talyllyn Railway
chosen
Talyllyn Railway is a historic narrow-gauge heritage railway in Wales, renowned as the world’s first preserved railway to be operated primarily by volunteers.
-
B.
Llangollen Railway
Llangollen Railway is a preserved heritage railway in Denbighshire, Wales, known for operating steam and heritage diesel services through the scenic Dee Valley.
-
C.
Pelion Railway
Pelion Railway is a historic narrow-gauge mountain railway in Greece, renowned for its scenic route through the Pelion peninsula and its traditional steam trains.
-
D.
Conwy Valley Line
The Conwy Valley Line is a scenic railway route in North Wales that runs through the Conwy Valley from the coast into the Snowdonia National Park.
-
E.
Ebbw Valley Railway
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.
- F. None of above.
- G. Unsure - the case is ambiguous/there is not enough information to decide.
PD
Predicate disambiguation
gpt-5-mini-2025-08-07
Target predicate: isMountainTerminusOf Context triple: [Nant Gwernol railway station, isMountainTerminusOf, Talyllyn Railway]
-
A.
isSummitOf
Indicates that one entity is the highest point or peak (summit) of another entity, such as a mountain or structure.
-
B.
isEasternPeakOf
Indicates that one peak is the eastern member or counterpart within a set or pair of related peaks.
-
C.
isMajorWatercourseOf
Indicates that a watercourse is a primary or significant river or stream associated with, or flowing through, a particular geographic area or feature.
-
D.
isSourceAndSummitOf
Indicates that an entity serves both as the originating point (source) and the highest point (summit) of another entity or feature.
-
E.
isWatercourseOf
Indicates that a watercourse (such as a river or stream) flows through, belongs to, or is geographically associated with a particular area or feature.
- F. None of above. chosen
Provenance (5 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_69e4acb7fdac8190bced7e26c948ee4a |
completed | April 19, 2026, 10:21 a.m. |
| PD | Predicate disambiguation | batch_69d6dd8cc0788190b4c02a772e4b58b3 |
completed | April 8, 2026, 10:58 p.m. |
| PDg | Predicate description generation | batch_69d6df47899481909ac0e518d94883cb |
completed | April 8, 2026, 11:05 p.m. |
Created at: April 8, 2026, 9:11 p.m.