Triple

T16986158
Position Surface form Disambiguated ID Type / Status
Subject Hendon Central Underground station E412069 entity
Predicate servedByNightService P24349 FINISHED
Object Night Tube (Northern line, limited periods) E1239246 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: Night Tube (Northern line, limited periods) | Statement: [Hendon Central Underground station, servedByNightService, Night Tube (Northern line, limited periods)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Night Tube (Northern line, limited periods)
Context triple: [Hendon Central Underground station, servedByNightService, Night Tube (Northern line, limited periods)]
  • A. Night Tube on Central line (weekends)
    Night Tube on Central line (weekends) is Transport for London’s overnight weekend service on the Central line, running trains through Friday and Saturday nights to provide 24-hour connectivity across key parts of the network.
  • B. Night Tube (weekend services on some lines passing through) chosen
    Night Tube is a London Underground service offering all-night trains on selected lines during weekend nights to provide 24-hour public transport across key parts of the city.
  • C. Linha do Norte (Northern Line)
    Linha do Norte (Northern Line) is Portugal’s principal mainline railway corridor, linking Lisbon to Porto and serving as the country’s busiest and most important rail route.
  • D. Northern line
    The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
  • E. T9 Northern Line
    T9 Northern Line is a suburban passenger rail service forming part of the Sydney Trains network, connecting Sydney’s northern suburbs with the city and other key hubs.
  • 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_69d886ca8f348190812768ea8d5055ce completed April 10, 2026, 5:12 a.m.
NER Named-entity recognition batch_69e3d27b58908190a643bcbd105b1849 completed April 18, 2026, 6:50 p.m.
NED1 Entity disambiguation (via context triple) batch_6a00dc1109a081908890bbd5958c76c2 completed May 10, 2026, 7:27 p.m.
Created at: April 10, 2026, 5:32 a.m.