Triple

T10912238
Position Surface form Disambiguated ID Type / Status
Subject Llangollen Railway E257728 entity
Predicate hasFacility P105 FINISHED
Object Llangollen locomotive works
Llangollen locomotive works is a heritage railway engineering and restoration facility in Llangollen, Wales, specializing in the overhaul and maintenance of historic steam and diesel locomotives.
 E892764 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: Llangollen locomotive works | Statement: [Llangollen Railway, hasFacility, Llangollen locomotive works]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Llangollen locomotive works
Context triple: [Llangollen Railway, hasFacility, Llangollen locomotive works]
  • A. Crewe Works
    Crewe Works is a historic railway engineering and manufacturing facility in Crewe, England, renowned for building and maintaining locomotives and rolling stock since the 19th century.
  • B. Derby railway works
    Derby railway works is a historic British railway engineering and manufacturing complex in Derby that played a major role in the development and maintenance of locomotives and rolling stock.
  • C. Dunkirk locomotive works
    Dunkirk locomotive works was a locomotive manufacturing facility in Dunkirk, New York, known for producing steam locomotives in the late 19th and early 20th centuries.
  • D. Doncaster Works
    Doncaster Works is a historic British railway engineering and locomotive-building facility in Doncaster, England, long associated with the construction and maintenance of notable steam locomotives.
  • E. Deeside engine plant
    The Deeside engine plant is a Toyota Manufacturing UK facility in Wales that produces engines and related components for Toyota vehicles.
  • 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: Llangollen locomotive works
Triple: [Llangollen Railway, hasFacility, Llangollen locomotive works]
Generated description
Llangollen locomotive works is a heritage railway engineering and restoration facility in Llangollen, Wales, specializing in the overhaul and maintenance of historic steam and diesel locomotives.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Llangollen locomotive works
Target entity description: Llangollen locomotive works is a heritage railway engineering and restoration facility in Llangollen, Wales, specializing in the overhaul and maintenance of historic steam and diesel locomotives.
  • A. Crewe Works
    Crewe Works is a historic railway engineering and manufacturing facility in Crewe, England, renowned for building and maintaining locomotives and rolling stock since the 19th century.
  • B. Derby railway works
    Derby railway works is a historic British railway engineering and manufacturing complex in Derby that played a major role in the development and maintenance of locomotives and rolling stock.
  • C. Dunkirk locomotive works
    Dunkirk locomotive works was a locomotive manufacturing facility in Dunkirk, New York, known for producing steam locomotives in the late 19th and early 20th centuries.
  • D. Doncaster Works
    Doncaster Works is a historic British railway engineering and locomotive-building facility in Doncaster, England, long associated with the construction and maintenance of notable steam locomotives.
  • E. Deeside engine plant
    The Deeside engine plant is a Toyota Manufacturing UK facility in Wales that produces engines and related components for Toyota vehicles.
  • 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_69d6aa864ed88190818280ab6791d065 completed April 8, 2026, 7:20 p.m.
NER Named-entity recognition batch_69d770723df08190bedfdc94d998f969 completed April 9, 2026, 9:25 a.m.
NED1 Entity disambiguation (via context triple) batch_69e155550e388190bd441ac3a9dde435 completed April 16, 2026, 9:32 p.m.
NEDg Description generation batch_69e1801eaa048190a5e8822b3da1077c completed April 17, 2026, 12:34 a.m.
NED2 Entity disambiguation (via description) batch_69e1831f8a6c819084bde8f71371cf8e completed April 17, 2026, 12:47 a.m.
Created at: April 8, 2026, 9:22 p.m.