Triple

T2754320
Position Surface form Disambiguated ID Type / Status
Subject Hammersmith & City line E61063 entity
Predicate openedAsPartOf P9951 FINISHED
Object Metropolitan Railway E59705 NE FINISHED

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: Metropolitan Railway | Statement: [Hammersmith & City line, openedAsPartOf, Metropolitan Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Railway
Context triple: [Hammersmith & City line, openedAsPartOf, Metropolitan Railway]
  • A. Metropolitan Railway chosen
    The Metropolitan Railway was the pioneering underground railway in London and the world’s first urban underground passenger railway, forming the core of what became the London Underground.
  • B. Central London Railway
    Central London Railway was an early deep-level underground railway in London that later became the core of the London Underground's Central line.
  • C. District Railway
    The District Railway was a historic London underground railway company that developed much of what is now the District line, helping to form the core of the city's early subterranean transport network.
  • D. North London Railway
    The North London Railway was a British railway company that operated suburban and freight services across north London during the 19th and early 20th centuries.
  • E. Snow Hill Lines
    Snow Hill Lines is a network of suburban and regional railway routes in the West Midlands, England, centered on Birmingham Snow Hill station.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.

Provenance (3 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_69ab4b7a85bc819094a349b84beb1f2c completed March 6, 2026, 9:47 p.m.
NER Named-entity recognition batch_69abdb7073d081909da84b21015972f2 completed March 7, 2026, 8:01 a.m.
NED1 Entity disambiguation (via context triple) batch_69afc6439b348190be7529256d9d0531 completed March 10, 2026, 7:20 a.m.
Created at: March 6, 2026, 9:56 p.m.