Triple

T15445741
Position Surface form Disambiguated ID Type / Status
Subject Lydbrook E370016 entity
Predicate hasStructure P35 FINISHED
Object Lydbrook Viaduct (demolished)
Lydbrook Viaduct (demolished) was a former railway viaduct in Lydbrook, Herefordshire, England, that once carried the Severn and Wye Railway across the valley before its removal.
 E1158253 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: Lydbrook Viaduct (demolished) | Statement: [Lydbrook, hasStructure, Lydbrook Viaduct (demolished)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Lydbrook Viaduct (demolished)
Context triple: [Lydbrook, hasStructure, Lydbrook Viaduct (demolished)]
  • A. Avon Viaduct (railway)
    Avon Viaduct (railway) is a historic stone railway viaduct in South Lanarkshire, Scotland, notable for carrying trains high above the surrounding valley.
  • B. Slateford Viaduct
    Slateford Viaduct is a historic railway viaduct in the Slateford area of Edinburgh, Scotland, carrying trains high above the Water of Leith and the Union Canal.
  • C. Vauxhall railway viaduct
    The Vauxhall railway viaduct is an elevated rail structure in London that carries multiple mainline tracks across the Vauxhall area, linking approaches into central London’s major termini.
  • D. Crimple Valley Viaduct
    Crimple Valley Viaduct is a historic multi-arch railway viaduct in North Yorkshire, England, notable for carrying the Harrogate–Leeds line across the Crimple Valley.
  • E. Denby Dale Viaduct
    Denby Dale Viaduct is a historic railway viaduct in West Yorkshire, England, carrying trains across the Dearne Valley on the Penistone Line.
  • 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: Lydbrook Viaduct (demolished)
Triple: [Lydbrook, hasStructure, Lydbrook Viaduct (demolished)]
Generated description
Lydbrook Viaduct (demolished) was a former railway viaduct in Lydbrook, Herefordshire, England, that once carried the Severn and Wye Railway across the valley before its removal.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Lydbrook Viaduct (demolished)
Target entity description: Lydbrook Viaduct (demolished) was a former railway viaduct in Lydbrook, Herefordshire, England, that once carried the Severn and Wye Railway across the valley before its removal.
  • A. Avon Viaduct (railway)
    Avon Viaduct (railway) is a historic stone railway viaduct in South Lanarkshire, Scotland, notable for carrying trains high above the surrounding valley.
  • B. Slateford Viaduct
    Slateford Viaduct is a historic railway viaduct in the Slateford area of Edinburgh, Scotland, carrying trains high above the Water of Leith and the Union Canal.
  • C. Vauxhall railway viaduct
    The Vauxhall railway viaduct is an elevated rail structure in London that carries multiple mainline tracks across the Vauxhall area, linking approaches into central London’s major termini.
  • D. Crimple Valley Viaduct
    Crimple Valley Viaduct is a historic multi-arch railway viaduct in North Yorkshire, England, notable for carrying the Harrogate–Leeds line across the Crimple Valley.
  • E. Denby Dale Viaduct
    Denby Dale Viaduct is a historic railway viaduct in West Yorkshire, England, carrying trains across the Dearne Valley on the Penistone Line.
  • 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_69d85a19180081909925012fbf4e62a3 completed April 10, 2026, 2:02 a.m.
NER Named-entity recognition batch_69e03ef666e08190a02a01a676306ab9 completed April 16, 2026, 1:44 a.m.
NED1 Entity disambiguation (via context triple) batch_69ff21adb6b88190b573068bda223892 completed May 9, 2026, 11:59 a.m.
NEDg Description generation batch_69ff25abb8fc8190b1a6dc0b5ba8ccd7 completed May 9, 2026, 12:16 p.m.
NED2 Entity disambiguation (via description) batch_69ff262390f48190b4917926b493b16d completed May 9, 2026, 12:18 p.m.
Created at: April 10, 2026, 3:21 a.m.