Triple

T963126
Position Surface form Disambiguated ID Type / Status
Subject Southwark E20778 entity
Predicate hasUndergroundStation P918 FINISHED
Object Waterloo Underground station
Waterloo Underground station is a major London Underground interchange in central London, serving multiple lines and providing access to the adjacent Waterloo mainline railway station.
 E134209 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: Waterloo Underground station | Statement: [Southwark, hasUndergroundStation, Waterloo Underground station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Waterloo Underground station
Context triple: [Southwark, hasUndergroundStation, Waterloo Underground station]
  • A. St Paul’s Underground station
    St Paul’s Underground station is a London Underground station in the City of London serving the Central line near St Paul’s Cathedral.
  • B. Queensway Underground station
    Queensway Underground station is a Central line Tube station in Bayswater, London, serving the nearby Kensington Gardens and Queensway shopping area.
  • C. West End station
    West End station is a key Dallas Area Rapid Transit (DART) light rail stop serving the historic West End district in downtown Dallas, Texas.
  • D. Westminster Underground Station
    Westminster Underground Station is a central London Tube station serving the Westminster area, including key landmarks such as the Houses of Parliament and Big Ben.
  • E. St George's Cross subway station
    St George's Cross subway station is an underground rapid transit stop on Glasgow's circular subway system serving the St George's Cross area of the city.
  • 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: Waterloo Underground station
Triple: [Southwark, hasUndergroundStation, Waterloo Underground station]
Generated description
Waterloo Underground station is a major London Underground interchange in central London, serving multiple lines and providing access to the adjacent Waterloo mainline railway station.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Waterloo Underground station
Target entity description: Waterloo Underground station is a major London Underground interchange in central London, serving multiple lines and providing access to the adjacent Waterloo mainline railway station.
  • A. St Paul’s Underground station
    St Paul’s Underground station is a London Underground station in the City of London serving the Central line near St Paul’s Cathedral.
  • B. Queensway Underground station
    Queensway Underground station is a Central line Tube station in Bayswater, London, serving the nearby Kensington Gardens and Queensway shopping area.
  • C. West End station
    West End station is a key Dallas Area Rapid Transit (DART) light rail stop serving the historic West End district in downtown Dallas, Texas.
  • D. Westminster Underground Station
    Westminster Underground Station is a central London Tube station serving the Westminster area, including key landmarks such as the Houses of Parliament and Big Ben.
  • E. St George's Cross subway station
    St George's Cross subway station is an underground rapid transit stop on Glasgow's circular subway system serving the St George's Cross area of the city.
  • 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_69a493b21f2881908132dcf45dcd2f36 completed March 1, 2026, 7:29 p.m.
NER Named-entity recognition batch_69a4b74fc204819083dbed5c19c4bc15 completed March 1, 2026, 10:01 p.m.
NED1 Entity disambiguation (via context triple) batch_69ac66179f908190b3f0144d1ee91a1c completed March 7, 2026, 5:53 p.m.
NEDg Description generation batch_69ac66f0e874819092d51913f08905d4 completed March 7, 2026, 5:57 p.m.
NED2 Entity disambiguation (via description) batch_69ac676cb9a08190a83d47de80126677 completed March 7, 2026, 5:59 p.m.
Created at: March 1, 2026, 7:40 p.m.