Triple

T1274395
Position Surface form Disambiguated ID Type / Status
Subject Luton Airport E15779 entity
Predicate hasAutomatedPeopleMover P23569 FINISHED
Object Luton DART
Luton DART is an automated light rail people mover system that links Luton Airport with nearby transport connections, providing fast, driverless transit for passengers.
E145750 NE FINISHED

How this triple was built (5 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: Luton DART | Statement: [Luton Airport, hasAutomatedPeopleMover, Luton DART]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Luton DART
Context triple: [Luton Airport, hasAutomatedPeopleMover, Luton DART]
  • A. Greater Anglia
    Greater Anglia is a British train operating company that provides passenger rail services across East Anglia and parts of London and the East of England.
  • B. Thameslink
    Thameslink is a major British rail network providing cross-London services that connect destinations across the South East of England.
  • C. Gatwick Express
    Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
  • D. Severn Beach Line
    The Severn Beach Line is a suburban railway route in the Bristol area of England, running from the city through its northern suburbs to the coastal village of Severn Beach.
  • E. Brighton Main Line
    The Brighton Main Line is a major railway route in southern England that connects London with the coastal city of Brighton, serving numerous commuter towns along the way.
  • 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: Luton DART
Triple: [Luton Airport, hasAutomatedPeopleMover, Luton DART]
Generated description
Luton DART is an automated light rail people mover system that links Luton Airport with nearby transport connections, providing fast, driverless transit for passengers.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Luton DART
Target entity description: Luton DART is an automated light rail people mover system that links Luton Airport with nearby transport connections, providing fast, driverless transit for passengers.
  • A. Greater Anglia
    Greater Anglia is a British train operating company that provides passenger rail services across East Anglia and parts of London and the East of England.
  • B. Thameslink
    Thameslink is a major British rail network providing cross-London services that connect destinations across the South East of England.
  • C. Gatwick Express
    Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
  • D. Severn Beach Line
    The Severn Beach Line is a suburban railway route in the Bristol area of England, running from the city through its northern suburbs to the coastal village of Severn Beach.
  • E. Brighton Main Line
    The Brighton Main Line is a major railway route in southern England that connects London with the coastal city of Brighton, serving numerous commuter towns along the way.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasAutomatedPeopleMover
Context triple: [Luton Airport, hasAutomatedPeopleMover, Luton DART]
  • A. hasRideSystem chosen
    Indicates that one entity (typically an attraction or ride) uses or is associated with a particular ride system or ride mechanism.
  • B. hasEscalators
    Indicates that one entity is equipped with or contains escalators that can be used for movement between different levels or areas.
  • C. hasPlatformScreenDoors
    Indicates that a transit station or platform is equipped with platform screen doors separating passengers from the tracks.
  • D. hasElevators
    Indicates that one entity is equipped with or contains one or more elevators for vertical transportation.
  • E. hasPassengerTerminal
    Indicates that one entity possesses or is equipped with a passenger terminal used for boarding, alighting, or handling passengers.
  • F. None of above.

Provenance (6 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_69a4935a94308190bb92555b79032824 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4c31602b8819087a57e8d390cae7a completed March 1, 2026, 10:52 p.m.
NED1 Entity disambiguation (via context triple) batch_69aca2f49a98819083dacff7e76ad195 completed March 7, 2026, 10:13 p.m.
NEDg Description generation batch_69aca38229108190b8cc2e0ef5bc8667 completed March 7, 2026, 10:15 p.m.
NED2 Entity disambiguation (via description) batch_69aca40068f08190a49f9cbb5c78b471 completed March 7, 2026, 10:17 p.m.
PD Predicate disambiguation batch_69a4bee0be808190a8ccac6a41851fdd completed March 1, 2026, 10:34 p.m.
Created at: March 1, 2026, 7:50 p.m.