Triple

T14703953
Position Surface form Disambiguated ID Type / Status
Subject Black Diamond E345375 entity
Predicate operatedOn P2572 FINISHED
Object Stockton–Darlington line
The Stockton–Darlington line was the world’s first public railway to use steam locomotives, marking a key milestone in the early development of rail transport in England.
E1115794 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–Darlington line | Statement: [Black Diamond, operatedOn, Stockton–Darlington line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Stockton–Darlington line
Context triple: [Black Diamond, operatedOn, Stockton–Darlington line]
  • A. Tyne Dock–Consett line
    The Tyne Dock–Consett line was a former heavy freight and passenger railway in northeast England that primarily served the iron and steel industries around Consett by linking them to the port facilities at Tyne Dock.
  • B. Bishop Auckland–Darlington line
    The Bishop Auckland–Darlington line is a railway route in County Durham, England, historically part of the North Eastern Railway and serving as a local connector between the town of Bishop Auckland and the larger rail hub at Darlington.
  • C. Manchester–Blackburn line
    The Manchester–Blackburn line is a railway route in North West England that connects Manchester with Blackburn via intermediate towns such as Bolton.
  • D. Wigan–Southport line
    The Wigan–Southport line is a regional railway route in North West England linking the inland town of Wigan with the coastal resort of Southport.
  • E. Manchester–Stoke-on-Trent line
    The Manchester–Stoke-on-Trent line is a key railway route in North West England linking Manchester with Stoke-on-Trent and serving several intermediate towns and commuter communities.
  • 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–Darlington line
Triple: [Black Diamond, operatedOn, Stockton–Darlington line]
Generated description
The Stockton–Darlington line was the world’s first public railway to use steam locomotives, marking a key milestone in the early development of rail transport in England.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Stockton–Darlington line
Target entity description: The Stockton–Darlington line was the world’s first public railway to use steam locomotives, marking a key milestone in the early development of rail transport in England.
  • A. Tyne Dock–Consett line
    The Tyne Dock–Consett line was a former heavy freight and passenger railway in northeast England that primarily served the iron and steel industries around Consett by linking them to the port facilities at Tyne Dock.
  • B. Bishop Auckland–Darlington line
    The Bishop Auckland–Darlington line is a railway route in County Durham, England, historically part of the North Eastern Railway and serving as a local connector between the town of Bishop Auckland and the larger rail hub at Darlington.
  • C. Manchester–Blackburn line
    The Manchester–Blackburn line is a railway route in North West England that connects Manchester with Blackburn via intermediate towns such as Bolton.
  • D. Wigan–Southport line
    The Wigan–Southport line is a regional railway route in North West England linking the inland town of Wigan with the coastal resort of Southport.
  • E. Manchester–Stoke-on-Trent line
    The Manchester–Stoke-on-Trent line is a key railway route in North West England linking Manchester with Stoke-on-Trent and serving several intermediate towns and commuter communities.
  • 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_69d822e4a8c08190a155df736bb7bc13 completed April 9, 2026, 10:06 p.m.
NER Named-entity recognition batch_69deb6071e5c8190bb5509c859135c2d completed April 14, 2026, 9:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69fdf0861c308190af0b5da403ecb321 completed May 8, 2026, 2:17 p.m.
NEDg Description generation batch_69fdf368782c8190825247435eab2045 completed May 8, 2026, 2:30 p.m.
NED2 Entity disambiguation (via description) batch_69fdf3fe50ac8190ad5529427472eda3 completed May 8, 2026, 2:32 p.m.
Created at: April 10, 2026, 1:28 a.m.