Triple

T23427980
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 465 E563245 entity
Predicate usedOn P2367 FINISHED
Object Chatham Main Line — NE NERFINISHED

How this triple was built (2 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: Chatham Main Line | Statement: [British Rail Class 465, usedOn, Chatham Main Line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Chatham Main Line
Context triple: [British Rail Class 465, usedOn, Chatham Main Line]
  • A. Chatham Main Line chosen
    The Chatham Main Line is a major railway route in southeast England that connects London with Medway, east Kent, and coastal towns such as Ramsgate and Dover.
  • B. Ou Main Line
    The Ōu Main Line is a major Japanese railway route in the Tōhoku region that runs roughly north–south through Honshu, connecting key cities including Aomori.
  • C. Ashford–Ramsgate line
    The Ashford–Ramsgate line is a railway route in Kent, England, connecting inland towns with the coastal resort of Ramsgate and forming part of the regional passenger rail network.
  • D. Seaford Branch Line
    The Seaford Branch Line is a suburban railway route in East Sussex, England, connecting the coastal town of Seaford with the mainline rail network.
  • E. The Brighton Line
    The Brighton Line is a historic and heavily used railway route in southern England linking London with the seaside city of Brighton.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (2 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_69e24553980c8190bb66a2ae0bdab125 completed April 17, 2026, 2:36 p.m.
NER Named-entity recognition batch_69f1a54ae8ac8190b0bae2560582c904 completed April 29, 2026, 6:29 a.m.
Created at: April 17, 2026, 5:48 p.m.