Triple

T17446112
Position Surface form Disambiguated ID Type / Status
Subject Welshpool and Llanfair Light Railway E424787 entity
Predicate heritageOperator P56395 FINISHED
Object Welshpool and Llanfair Light Railway Preservation Company — NE NERFINISHED

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: Welshpool and Llanfair Light Railway Preservation Company | Statement: [Welshpool and Llanfair Light Railway, heritageOperator, Welshpool and Llanfair Light Railway Preservation Company]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Welshpool and Llanfair Light Railway Preservation Company
Context triple: [Welshpool and Llanfair Light Railway, heritageOperator, Welshpool and Llanfair Light Railway Preservation Company]
  • A. Welshpool and Llanfair Light Railway
    Welshpool and Llanfair Light Railway is a preserved narrow-gauge heritage railway in Powys, Wales, offering scenic steam-hauled journeys through the countryside.
  • B. Welsh Highland Railway
    The Welsh Highland Railway is a scenic narrow-gauge heritage railway in North Wales that runs through the mountainous landscapes of Snowdonia.
  • C. Aberystwith and Welsh Coast Railway
    The Aberystwith and Welsh Coast Railway was a 19th-century railway company in Wales that developed coastal rail routes, including the line serving Aberystwyth.
  • D. 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.
  • E. Taff Vale Railway
    Taff Vale Railway was a historic Welsh railway company that played a key role in transporting coal and passengers in South Wales during the 19th and early 20th centuries.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Welshpool and Llanfair Light Railway Preservation Company
Target entity description: The Welshpool and Llanfair Light Railway Preservation Company is a volunteer-run organization dedicated to restoring, operating, and maintaining the historic narrow-gauge Welshpool and Llanfair Light Railway in Wales as a heritage attraction.
  • A. Welshpool and Llanfair Light Railway
    Welshpool and Llanfair Light Railway is a preserved narrow-gauge heritage railway in Powys, Wales, offering scenic steam-hauled journeys through the countryside.
  • B. Welsh Highland Railway
    The Welsh Highland Railway is a scenic narrow-gauge heritage railway in North Wales that runs through the mountainous landscapes of Snowdonia.
  • C. Aberystwith and Welsh Coast Railway
    The Aberystwith and Welsh Coast Railway was a 19th-century railway company in Wales that developed coastal rail routes, including the line serving Aberystwyth.
  • D. 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.
  • E. Taff Vale Railway
    Taff Vale Railway was a historic Welsh railway company that played a key role in transporting coal and passengers in South Wales during the 19th and early 20th centuries.
  • F. None of above. chosen

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_69d889db0ba481908402409af3b37917 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e44ffafec48190b25980318cea353f completed April 19, 2026, 3:46 a.m.
Created at: April 10, 2026, 5:47 a.m.