Triple

T20772259
Position Surface form Disambiguated ID Type / Status
Subject British Rail Mark 3 coaching stock E511264 entity
Predicate usedOn P2367 FINISHED
Object East Coast Main Line (early HST era) 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: East Coast Main Line (early HST era) | Statement: [British Rail Mark 3 coaching stock, usedOn, East Coast Main Line (early HST era)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: East Coast Main Line (early HST era)
Context triple: [British Rail Mark 3 coaching stock, usedOn, East Coast Main Line (early HST era)]
  • A. East Coast Main Line chosen
    The East Coast Main Line is a major high-speed railway route in the United Kingdom that runs between London and Edinburgh, serving numerous key cities and regions along the east side of the country.
  • B. Bedford–Brighton line
    The Bedford–Brighton line is a major north–south commuter and regional rail route in southern England, running through central London and forming the core of the Thameslink network.
  • C. Ōu Main Line
    The Ōu Main Line is a major Japanese railway line in the Tōhoku region that runs north–south through several prefectures, connecting key inland cities and serving as an important intercity and regional transport route.
  • D. Great Eastern Main Line
    The Great Eastern Main Line is a major railway route in England connecting London with key towns and cities in Essex, Suffolk, and Norfolk.
  • E. Atlantic Coast Line and Tarka Line community rail route
    The Atlantic Coast Line and Tarka Line community rail route is a designated community rail partnership corridor in southwest England that promotes and supports local passenger services, tourism, and community engagement along the Tarka and Atlantic Coast railway lines.
  • 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_69e0b4ca01148190ac018e57e0cab46f completed April 16, 2026, 10:07 a.m.
NER Named-entity recognition batch_69e6c2681ff88190bfe5938c2db6b2c4 completed April 21, 2026, 12:18 a.m.
Created at: April 16, 2026, 12:37 p.m.