Triple

T12638644
Position Surface form Disambiguated ID Type / Status
Subject Neasden Depot E301831 entity
Predicate servesRollingStockType P5426 FINISHED
Object London Underground S Stock E662936 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: London Underground S Stock | Statement: [Neasden Depot, servesRollingStockType, London Underground S Stock]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: London Underground S Stock
Context triple: [Neasden Depot, servesRollingStockType, London Underground S Stock]
  • A. London Underground S8 Stock chosen
    The London Underground S8 Stock is a modern fleet of air-conditioned, walk-through electric multiple units used on the Metropolitan line, designed to increase capacity and improve passenger comfort and accessibility.
  • B. London Underground 1992 Stock
    The London Underground 1992 Stock is a fleet of electric multiple unit trains primarily used on the Central line, known for introducing modern traction and passenger features to the deep-level Tube network in the early 1990s.
  • C. London Underground 1972 Stock
    The London Underground 1972 Stock is a long-serving fleet of tube trains primarily used on the Bakerloo line, known for its distinctive older design and continued operation well beyond its originally intended lifespan.
  • D. M1 Millennium Underground Railway
    The M1 Millennium Underground Railway is Budapest’s historic yellow metro line, recognized as the oldest electrified underground railway on the European continent and a UNESCO World Heritage site.
  • E. London Underground
    The London Underground is a rapid transit system serving Greater London and surrounding areas, famous as one of the world's oldest and most extensive metro networks.
  • 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_69d7bdec9f9c8190b4bac675b7588211 completed April 9, 2026, 2:55 p.m.
NER Named-entity recognition batch_69d961499de08190bdba66ca40b021be completed April 10, 2026, 8:44 p.m.
NED1 Entity disambiguation (via context triple) batch_69f668754acc8190b5585dbd35387867 completed May 2, 2026, 9:11 p.m.
Created at: April 9, 2026, 5:16 p.m.