Triple

T22348646
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 155 E552466 entity
Predicate operator P179 FINISHED
Object Regional Railways 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: Regional Railways | Statement: [British Rail Class 155, operator, Regional Railways]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Regional Railways
Context triple: [British Rail Class 155, operator, Regional Railways]
  • A. Regional Railways chosen
    Regional Railways was one of the post-sectorisation passenger business sectors of British Rail, responsible for operating local and regional train services across much of the UK outside the main intercity and commuter networks.
  • B. Regional Rail Link
    The Regional Rail Link is a major Victorian rail infrastructure project that created dedicated regional tracks through Melbourne’s western suburbs to improve capacity and reliability for country train services such as those on the Geelong line.
  • C. North American commuter railroads
    North American commuter railroads are passenger rail systems that provide medium-distance, peak-oriented train service between suburban or outlying areas and major urban centers across the continent.
  • D. Regionalbahn
    Regionalbahn is a category of German regional train service that provides relatively frequent, short- to medium-distance connections between local towns and cities.
  • E. Amtrak corridor services
    Amtrak corridor services are short- to medium-distance intercity passenger rail routes that connect major cities and regions across the United States with frequent, higher-speed train service.
  • 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_69e11e4a0ad08190a385b4d343cf6524 completed April 16, 2026, 5:37 p.m.
NER Named-entity recognition batch_69f1579a1c308190ae2174f99ae317ab completed April 29, 2026, 12:58 a.m.
Created at: April 16, 2026, 8:43 p.m.