Triple

T15234802
Position Surface form Disambiguated ID Type / Status
Subject Yellow Line (Budapest Metro) E364096 entity
Predicate precededBy P97 FINISHED
Object City & South London Railway E304869 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: City & South London Railway | Statement: [Yellow Line (Budapest Metro), precededBy, City & South London Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: City & South London Railway
Context triple: [Yellow Line (Budapest Metro), precededBy, City & South London Railway]
  • A. City and South London Railway chosen
    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.
  • 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 Railway
    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.
  • D. 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.
  • E. Charing Cross, Euston and Hampstead Railway
    The Charing Cross, Euston and Hampstead Railway was an early deep-level “tube” railway in London that later became a core part of the London Underground’s Northern line.
  • 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_69d85a0ce24c81909c4d3b6475548c95 completed April 10, 2026, 2:01 a.m.
NER Named-entity recognition batch_69e007d91e4881908ea52d11a3d4480a completed April 15, 2026, 9:49 p.m.
NED1 Entity disambiguation (via context triple) batch_69fedd3dd5a081909a1a7fceda648c29 completed May 9, 2026, 7:07 a.m.
Created at: April 10, 2026, 3:12 a.m.