Triple

T6210954
Position Surface form Disambiguated ID Type / Status
Subject River Don E138865 entity
Predicate hasBridge P386 FINISHED
Object Doncaster railway bridges
Doncaster railway bridges are a series of rail bridges in Doncaster, South Yorkshire, that carry key railway lines across the River Don and surrounding infrastructure.
 E575586 NE FINISHED

Named-entity recognition

Before disambiguation, gpt-5-mini classified whether the object phrase is a named entity — the step behind the object's NE type shown above.

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: Doncaster railway bridges | Statement: [River Don, hasBridge, Doncaster railway bridges]

Disambiguation candidates (2 decisions)

The exact options the model was shown at each disambiguation step, with the option it chose highlighted — the evidence behind this triple's disambiguated ids.

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Doncaster railway bridges
Context triple: [River Don, hasBridge, Doncaster railway bridges]
  • A. Ribblehead Viaduct
    Ribblehead Viaduct is a 19th-century stone railway viaduct in North Yorkshire, England, famed for its dramatic setting on the Settle–Carlisle line and its series of imposing arches across the Ribble Valley.
  • B. Runcorn Railway Bridge
    Runcorn Railway Bridge is a historic steel truss railway bridge in northwest England that carries trains across the River Mersey between Runcorn and Widnes.
  • C. Gunthorpe Bridge
    Gunthorpe Bridge is a road bridge spanning the River Trent in Nottinghamshire, England, carrying the A6097 and serving as a key local crossing point.
  • D. Blackfriars Railway Bridge
    Blackfriars Railway Bridge is a historic railway bridge over the River Thames in central London, carrying train services into Blackfriars station and notable for its prominent position near the City of London.
  • E. Castlefield Viaduct
    Castlefield Viaduct is a historic elevated railway viaduct in Manchester, England, now notable for its transformation into an urban sky park and public green space.
  • 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: Doncaster railway bridges
Target entity description: Doncaster railway bridges are a series of rail bridges in Doncaster, South Yorkshire, that carry key railway lines across the River Don and surrounding infrastructure.
  • A. Ribblehead Viaduct
    Ribblehead Viaduct is a 19th-century stone railway viaduct in North Yorkshire, England, famed for its dramatic setting on the Settle–Carlisle line and its series of imposing arches across the Ribble Valley.
  • B. Runcorn Railway Bridge
    Runcorn Railway Bridge is a historic steel truss railway bridge in northwest England that carries trains across the River Mersey between Runcorn and Widnes.
  • C. Gunthorpe Bridge
    Gunthorpe Bridge is a road bridge spanning the River Trent in Nottinghamshire, England, carrying the A6097 and serving as a key local crossing point.
  • D. Blackfriars Railway Bridge
    Blackfriars Railway Bridge is a historic railway bridge over the River Thames in central London, carrying train services into Blackfriars station and notable for its prominent position near the City of London.
  • E. Castlefield Viaduct
    Castlefield Viaduct is a historic elevated railway viaduct in Manchester, England, now notable for its transformation into an urban sky park and public green space.
  • F. None of above. chosen

How the object was described

The object's one-sentence description was generated by prompting gpt-5.1 with the object name and this triple as context.

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: Doncaster railway bridges
Triple: [River Don, hasBridge, Doncaster railway bridges]
Generated description
Doncaster railway bridges are a series of rail bridges in Doncaster, South Yorkshire, that carry key railway lines across the River Don and surrounding infrastructure.

Provenance (5 batches)

Stage Batch ID Job type Status
creating batch_69c008ada364819096c9e92c74d639b5 elicitation completed
NER batch_69c062896f3881909f264bb45badc5d0 ner completed
NED1 batch_69c16f57821c8190bd7a5f6bf286ab09 ned_source_triple completed
NED2 batch_69c1c3f2b1388190bef6fe203f11fa3f ned_description completed
NEDg batch_69c1bfe63d708190b734c064bdf0d735 nedg completed
Created at: March 22, 2026, 4:21 p.m.