Triple

T545014
Position Surface form Disambiguated ID Type / Status
Subject George Stephenson E12713 entity
Predicate notableWork P4 FINISHED
Object Stockton and Darlington Railway
The Stockton and Darlington Railway was the world’s first public railway to use steam locomotives for regular passenger and freight services, marking a key milestone in the development of modern rail transport.
 E68780 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: Stockton and Darlington Railway | Statement: [George Stephenson, notableWork, Stockton and Darlington Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Stockton and Darlington Railway
Context triple: [George Stephenson, notableWork, Stockton and Darlington Railway]
  • A. Liverpool and Manchester Railway
    The Liverpool and Manchester Railway was one of the world’s first inter-city passenger railways to rely exclusively on steam power, pioneering modern railway transport in early 19th-century England.
  • B. Stephenson's Rocket
    Stephenson's Rocket is an early 19th-century steam locomotive famous for winning the 1829 Rainhill Trials and proving the viability of railway transport.
  • C. 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.
  • D. Manchester and Birmingham Railway
    The Manchester and Birmingham Railway was an early 19th-century British railway company that operated a key main line in northwest England before becoming part of the London and North Western Railway.
  • E. Ffestiniog Railway
    Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
  • 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: Stockton and Darlington Railway
Triple: [George Stephenson, notableWork, Stockton and Darlington Railway]
Generated description
The Stockton and Darlington Railway was the world’s first public railway to use steam locomotives for regular passenger and freight services, marking a key milestone in the development of modern rail transport.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Stockton and Darlington Railway
Target entity description: The Stockton and Darlington Railway was the world’s first public railway to use steam locomotives for regular passenger and freight services, marking a key milestone in the development of modern rail transport.
  • A. Liverpool and Manchester Railway
    The Liverpool and Manchester Railway was one of the world’s first inter-city passenger railways to rely exclusively on steam power, pioneering modern railway transport in early 19th-century England.
  • B. Stephenson's Rocket
    Stephenson's Rocket is an early 19th-century steam locomotive famous for winning the 1829 Rainhill Trials and proving the viability of railway transport.
  • C. 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.
  • D. Manchester and Birmingham Railway
    The Manchester and Birmingham Railway was an early 19th-century British railway company that operated a key main line in northwest England before becoming part of the London and North Western Railway.
  • E. Ffestiniog Railway
    Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
  • 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_69a49334226c81908b0ea1689ef6aa3f completed March 1, 2026, 7:27 p.m.
NER Named-entity recognition batch_69a498dfec5c81908b76d723b30dc2f0 completed March 1, 2026, 7:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69a4e02e0c1c81908fcb5356dc2b8f97 completed March 2, 2026, 12:56 a.m.
NEDg Description generation batch_69a4e124306c8190bce165e684507553 completed March 2, 2026, 1 a.m.
NED2 Entity disambiguation (via description) batch_69a4e1e73b0c8190b4f050f76f8e58de completed March 2, 2026, 1:03 a.m.
Created at: March 1, 2026, 7:32 p.m.