Triple

T3385586
Position Surface form Disambiguated ID Type / Status
Subject St Paul’s Underground station E71292 entity
Predicate nightService P9559 FINISHED
Object 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.
E352335 NE FINISHED

How this triple was built (4 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 on Central line (weekends) | Statement: [St Paul’s Underground station, nightService, Night Tube on Central line (weekends)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Night Tube on Central line (weekends)
Context triple: [St Paul’s Underground station, nightService, Night Tube on Central line (weekends)]
  • A. Jubilee line extension
    The Jubilee line extension is a major late-20th-century expansion of the London Underground that introduced new stations and modern infrastructure to connect central London with the Docklands and east London.
  • B. Northern line
    The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
  • C. Jubilee line
    The Jubilee line is a major London Underground line running across the city from northwest to east, serving key financial and commercial hubs including Canary Wharf.
  • D. London Overground
    London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
  • E. Central line (West Ruislip branch)
    The Central line (West Ruislip branch) is a western suburban branch of London Underground’s Central line, running from central London out to West Ruislip and serving areas including the London Borough of Hillingdon.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Night Tube on Central line (weekends)
Triple: [St Paul’s Underground station, nightService, Night Tube on Central line (weekends)]
Generated description
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.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Night Tube on Central line (weekends)
Target entity description: 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.
  • A. Jubilee line extension
    The Jubilee line extension is a major late-20th-century expansion of the London Underground that introduced new stations and modern infrastructure to connect central London with the Docklands and east London.
  • B. Northern line
    The Northern line is a major London Underground route running north–south across the city, serving key central and suburban areas.
  • C. Jubilee line
    The Jubilee line is a major London Underground line running across the city from northwest to east, serving key financial and commercial hubs including Canary Wharf.
  • D. London Overground
    London Overground is a suburban rail network in London that connects outer districts and some central hubs using a mix of newly built and former National Rail lines, integrated into the city’s public transport system.
  • E. Central line (West Ruislip branch)
    The Central line (West Ruislip branch) is a western suburban branch of London Underground’s Central line, running from central London out to West Ruislip and serving areas including the London Borough of Hillingdon.
  • F. None of above. chosen

Provenance (5 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_69ad85a8fd9c819095ecedf838d2bf1b completed March 8, 2026, 2:20 p.m.
NER Named-entity recognition batch_69adb5ee5e188190912dcea494a12038 completed March 8, 2026, 5:46 p.m.
NED1 Entity disambiguation (via context triple) batch_69b33455ae2481908e6478cb240b31c1 completed March 12, 2026, 9:47 p.m.
NEDg Description generation batch_69b334f75e708190aed8b388c9ea55d2 completed March 12, 2026, 9:49 p.m.
NED2 Entity disambiguation (via description) batch_69b3359bbf388190979c6003a9ed05b2 completed March 12, 2026, 9:52 p.m.
Created at: March 8, 2026, 3:14 p.m.