Triple
T3172298
| Position | Surface form | Disambiguated ID | Type / Status |
|---|---|---|---|
| Subject | North Wales Coast Line |
E66381
|
entity |
| Predicate | terminus |
P388
|
FINISHED |
| Object |
Holyhead railway station
Holyhead railway station is a major transport hub on the island of Anglesey in Wales, serving as the primary rail link for ferry passengers traveling between Great Britain and Ireland.
|
E334477
|
NE FINISHED |
How this triple was built (4 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: Holyhead railway station | Statement: [North Wales Coast Line, terminus, Holyhead railway station]
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Holyhead railway station Context triple: [North Wales Coast Line, terminus, Holyhead railway station]
-
A.
Porthmadog Harbour Station
Porthmadog Harbour Station is a historic narrow-gauge railway terminus in Porthmadog, Wales, serving as a key hub for heritage steam services on the Ffestiniog Railway.
-
B.
Dalgety Bay railway station
Dalgety Bay railway station is a suburban rail stop in Fife, Scotland, serving the town of Dalgety Bay with regular commuter services to Edinburgh and other nearby destinations.
-
C.
Newport railway station
Newport railway station is a key rail hub in South Wales, serving as an important interchange for regional and long-distance services across the UK rail network.
-
D.
Barmouth railway station
Barmouth railway station is a coastal train station in Gwynedd, Wales, providing passenger rail services to the seaside town of Barmouth on the Cambrian Coast Line.
-
E.
Swansea railway station
Swansea railway station is the principal rail hub serving the coastal city of Swansea in Wales, providing regional and long-distance services across South and West Wales and to major cities in England.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg
Description generation
gpt-5.1
Instruction
Generate a one-sentence description of the target entity. You are given a context triple in the form (subject, predicate, object), where the object is the target entity. # Instructions Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. Avoid repeating the information from the triple, unless really essential. # Response Format Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Holyhead railway station Triple: [North Wales Coast Line, terminus, Holyhead railway station]
Generated description
Holyhead railway station is a major transport hub on the island of Anglesey in Wales, serving as the primary rail link for ferry passengers traveling between Great Britain and Ireland.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Holyhead railway station Target entity description: Holyhead railway station is a major transport hub on the island of Anglesey in Wales, serving as the primary rail link for ferry passengers traveling between Great Britain and Ireland.
-
A.
Porthmadog Harbour Station
Porthmadog Harbour Station is a historic narrow-gauge railway terminus in Porthmadog, Wales, serving as a key hub for heritage steam services on the Ffestiniog Railway.
-
B.
Dalgety Bay railway station
Dalgety Bay railway station is a suburban rail stop in Fife, Scotland, serving the town of Dalgety Bay with regular commuter services to Edinburgh and other nearby destinations.
-
C.
Newport railway station
Newport railway station is a key rail hub in South Wales, serving as an important interchange for regional and long-distance services across the UK rail network.
-
D.
Barmouth railway station
Barmouth railway station is a coastal train station in Gwynedd, Wales, providing passenger rail services to the seaside town of Barmouth on the Cambrian Coast Line.
-
E.
Swansea railway station
Swansea railway station is the principal rail hub serving the coastal city of Swansea in Wales, providing regional and long-distance services across South and West Wales and to major cities in England.
- 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_69ad8585d7988190af37365331093ccd |
completed | March 8, 2026, 2:19 p.m. |
| NER | Named-entity recognition | batch_69ada66da23c81908f063b44b48b1e53 |
completed | March 8, 2026, 4:40 p.m. |
| NED1 | Entity disambiguation (via context triple) | batch_69b235e9f04c8190933e893e59e9f342 |
completed | March 12, 2026, 3:41 a.m. |
| NEDg | Description generation | batch_69b23699a6fc81908b15c7e23340f476 |
completed | March 12, 2026, 3:44 a.m. |
| NED2 | Entity disambiguation (via description) | batch_69b23a51a21c819083a4986e5b3ac63d |
completed | March 12, 2026, 4 a.m. |
Created at: March 8, 2026, 3:06 p.m.