Triple

T5854164
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 360 E130108 entity
Predicate usedOn P2367 FINISHED
Object Heathrow Connect route
The Heathrow Connect route was a suburban rail service linking London Paddington with Heathrow Airport, providing a slower, stopping alternative to the Heathrow Express until it was replaced by TfL Rail/Elizabeth line services.
 E549984 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: Heathrow Connect route | Statement: [British Rail Class 360, usedOn, Heathrow Connect route]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Heathrow Connect route
Context triple: [British Rail Class 360, usedOn, Heathrow Connect route]
  • A. Heathrow Express
    Heathrow Express is a non-stop high-speed train service linking London Paddington station with Heathrow Airport, providing one of the fastest rail connections between central London and the airport.
  • B. Stansted Express
    Stansted Express is a dedicated high-speed train service linking London Liverpool Street with Stansted Airport, providing frequent rail connections for air travelers.
  • C. Reading–Gatwick Airport route
    The Reading–Gatwick Airport route is a regional rail service in South East England that links Reading with Gatwick Airport via intermediate stations such as Reigate.
  • D. Heathrow Central (Terminals 2 & 3)
    Heathrow Central (Terminals 2 & 3) is a major rail station complex at London Heathrow Airport serving Terminals 2 and 3 with direct express and rail connections to central London.
  • E. Gatwick Express
    Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
  • 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: Heathrow Connect route
Triple: [British Rail Class 360, usedOn, Heathrow Connect route]
Generated description
The Heathrow Connect route was a suburban rail service linking London Paddington with Heathrow Airport, providing a slower, stopping alternative to the Heathrow Express until it was replaced by TfL Rail/Elizabeth line services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Heathrow Connect route
Target entity description: The Heathrow Connect route was a suburban rail service linking London Paddington with Heathrow Airport, providing a slower, stopping alternative to the Heathrow Express until it was replaced by TfL Rail/Elizabeth line services.
  • A. Heathrow Express
    Heathrow Express is a non-stop high-speed train service linking London Paddington station with Heathrow Airport, providing one of the fastest rail connections between central London and the airport.
  • B. Stansted Express
    Stansted Express is a dedicated high-speed train service linking London Liverpool Street with Stansted Airport, providing frequent rail connections for air travelers.
  • C. Reading–Gatwick Airport route
    The Reading–Gatwick Airport route is a regional rail service in South East England that links Reading with Gatwick Airport via intermediate stations such as Reigate.
  • D. Heathrow Central (Terminals 2 & 3)
    Heathrow Central (Terminals 2 & 3) is a major rail station complex at London Heathrow Airport serving Terminals 2 and 3 with direct express and rail connections to central London.
  • E. Gatwick Express
    Gatwick Express is a non-stop train service in the United Kingdom that connects central London with Gatwick Airport.
  • 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_69c0084de39081909eb34e6bed74215a completed March 22, 2026, 3:18 p.m.
NER Named-entity recognition batch_69c035529cf88190acc547ae839950e7 completed March 22, 2026, 6:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69c0a1bc58d081908568294278cbf3a9 completed March 23, 2026, 2:13 a.m.
NEDg Description generation batch_69c0a2ab17f481908f2d492e4d9d90fb completed March 23, 2026, 2:17 a.m.
NED2 Entity disambiguation (via description) batch_69c0a323d9248190aa803c27be3d5eec completed March 23, 2026, 2:19 a.m.
Created at: March 22, 2026, 3:55 p.m.