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.