Triple

T21272285
Position Surface form Disambiguated ID Type / Status
Subject Redbridge E524291 entity
Predicate hasTransport P1298 FINISHED
Object Central line of the London Underground 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: Central line of the London Underground | Statement: [Redbridge, hasTransport, Central line of the London Underground]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Central line of the London Underground
Context triple: [Redbridge, hasTransport, Central line of the London Underground]
  • A. London Underground Central line chosen
    The London Underground Central line is a major east–west Tube line running across Greater London, connecting key central and suburban areas as part of the city’s rapid transit network.
  • B. London Underground and Elizabeth line
    The London Underground and Elizabeth line are major rail networks in London, with the former being the city’s historic metro system and the latter a modern high-capacity cross-city railway.
  • C. sub-surface lines of London Underground
    The sub-surface lines of the London Underground are a group of wider, shallower-bored routes—such as the Circle, District, Hammersmith & City, and Metropolitan lines—operated with larger trains and serving many of the network’s central and inner-suburban corridors.
  • D. London Underground Metropolitan line
    The London Underground Metropolitan line is one of the network’s oldest and longest lines, running from central London into the north-west suburbs and beyond into Buckinghamshire.
  • E. London Underground District line
    The London Underground District line is a major Tube line in London running from the western suburbs through central London to the east, serving numerous key residential and commercial areas.
  • 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_69e0b516293c819089458ea2ec85f85e completed April 16, 2026, 10:08 a.m.
NER Named-entity recognition batch_69e73654ba148190a2eb0a06363cbd0b completed April 21, 2026, 8:33 a.m.
Created at: April 16, 2026, 4:01 p.m.