Triple

T9302149
Position Surface form Disambiguated ID Type / Status
Subject Hatfield rail crash E223790 entity
Predicate involvedInfrastructureManager P15572 FINISHED
Object Railtrack E43444 NE FINISHED

How this triple was built (3 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: Railtrack | Statement: [Hatfield rail crash, involvedInfrastructureManager, Railtrack]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Railtrack
Context triple: [Hatfield rail crash, involvedInfrastructureManager, Railtrack]
  • A. Railtrack chosen
    Railtrack was the former private owner and operator of most of Britain’s railway infrastructure, which was later replaced by the publicly owned Network Rail after financial and safety controversies.
  • B. British Rail
    British Rail was the state-owned company that operated most of the railway services in Great Britain from the late 1940s until the privatization of the rail network in the 1990s.
  • C. The Railway
    The Railway is an 1873 oil painting by Édouard Manet depicting a woman and a young girl by a Paris train station, notable for its modern urban subject and unconventional composition.
  • D. Rail Regulator
    The Rail Regulator was the former independent statutory body in Great Britain responsible for overseeing and enforcing the economic and safety regulation of the railway industry before its functions were transferred to successor regulators.
  • E. Anhalt Railway
    The Anhalt Railway is a major German railway line historically connecting Berlin with the Anhalt region and further south, serving both regional and long-distance traffic.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: involvedInfrastructureManager
Context triple: [Hatfield rail crash, involvedInfrastructureManager, Railtrack]
  • A. infrastructureManager chosen
    Indicates a relationship where one entity is responsible for overseeing, maintaining, or administering the infrastructure of another entity or system.
  • B. infrastructureRole
    Indicates that one entity serves a specific infrastructural function or capacity in relation to another entity.
  • C. ownerOfInfrastructureUsed
    Indicates that one entity owns the infrastructure that is being used by another entity or activity.
  • D. ownedInfrastructureClass
    Indicates that an entity possesses or controls infrastructure belonging to a specified class or category.
  • E. relatedInfrastructure
    Indicates that one piece of infrastructure is connected, associated, or functionally related to another infrastructure element.
  • F. None of above.

Provenance (4 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_69ca8424d0f08190831e2e93c6533aeb completed March 30, 2026, 2:09 p.m.
NER Named-entity recognition batch_69cd08d34c4c819095a213360747c3a6 completed April 1, 2026, noon
NED1 Entity disambiguation (via context triple) batch_69d0c77b8bf481909c5abf6523f75b2c completed April 4, 2026, 8:10 a.m.
PD Predicate disambiguation batch_69cc7a5ef1908190bc5ca166bb895af6 completed April 1, 2026, 1:52 a.m.
Created at: March 30, 2026, 7:36 p.m.