Triple

T13173105
Position Surface form Disambiguated ID Type / Status
Subject South Kensington E313026 entity
Predicate originalCompany P5599 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: [South Kensington, originalCompany, Metropolitan Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Metropolitan Railway
Context triple: [South Kensington, originalCompany, 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. Metropolitan District Railway
    The Metropolitan District Railway was a historic London railway company that developed much of what is now the District line of the London Underground in the late 19th and early 20th centuries.
  • D. Underground Electric Railways Company of London
    The Underground Electric Railways Company of London was the early 20th-century holding company that developed and operated much of London's deep-level tube network, forming the core of what became the London Underground.
  • E. City and South London Railway
    The City and South London Railway was the world's first deep-level electric tube railway in London, forming a key precursor to today's Northern line of the London Underground.
  • 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_69d806ac3ee081909b2fd27d060aa974 completed April 9, 2026, 8:06 p.m.
NER Named-entity recognition batch_69d98c2f22b881908a0af3af0a0af971 completed April 10, 2026, 11:47 p.m.
NED1 Entity disambiguation (via context triple) batch_69f72660f8d48190b437a57f2a75f6ae completed May 3, 2026, 10:41 a.m.
Created at: April 9, 2026, 9:14 p.m.