Triple

T6811802
Position Surface form Disambiguated ID Type / Status
Subject British Rail Class 166 E156651 entity
Predicate operator P179 FINISHED
Object First Great Western Link
First Great Western Link was a British train operating company that provided regional and commuter rail services in the Thames Valley and surrounding areas in the mid-2000s.
E620591 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: First Great Western Link | Statement: [British Rail Class 166, operator, First Great Western Link]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: First Great Western Link
Context triple: [British Rail Class 166, operator, First Great Western Link]
  • A. Chiltern Link
    Chiltern Link is a long-distance walking trail that runs through the scenic countryside of the Chilterns in southern England.
  • B. Malvern Link
    Malvern Link is a suburban area of the town of Malvern in Worcestershire, England, known for its residential character and local amenities.
  • C. Windsor Link
    Windsor Link is a railway connection in Manchester that links previously separate lines to improve cross-city rail services.
  • D. Levenmouth rail link
    The Levenmouth rail link is a Scottish railway project to reinstate passenger services connecting Leven and the surrounding Levenmouth area to the national rail network.
  • E. North Wales Expressway
    The North Wales Expressway is a major road route in north Wales that links the port town of Holyhead on Anglesey with the English border, forming part of the main corridor between Ireland and the UK mainland.
  • 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: First Great Western Link
Triple: [British Rail Class 166, operator, First Great Western Link]
Generated description
First Great Western Link was a British train operating company that provided regional and commuter rail services in the Thames Valley and surrounding areas in the mid-2000s.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: First Great Western Link
Target entity description: First Great Western Link was a British train operating company that provided regional and commuter rail services in the Thames Valley and surrounding areas in the mid-2000s.
  • A. Chiltern Link
    Chiltern Link is a long-distance walking trail that runs through the scenic countryside of the Chilterns in southern England.
  • B. Malvern Link
    Malvern Link is a suburban area of the town of Malvern in Worcestershire, England, known for its residential character and local amenities.
  • C. Windsor Link
    Windsor Link is a railway connection in Manchester that links previously separate lines to improve cross-city rail services.
  • D. Levenmouth rail link
    The Levenmouth rail link is a Scottish railway project to reinstate passenger services connecting Leven and the surrounding Levenmouth area to the national rail network.
  • E. North Wales Expressway
    The North Wales Expressway is a major road route in north Wales that links the port town of Holyhead on Anglesey with the English border, forming part of the main corridor between Ireland and the UK mainland.
  • 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_69c68828b26c819090fe9df7612bbc27 completed March 27, 2026, 1:37 p.m.
NER Named-entity recognition batch_69c6d327e37081909d576e6eff9eec97 completed March 27, 2026, 6:57 p.m.
NED1 Entity disambiguation (via context triple) batch_69c71aa7dc3c81909ef422b5c51ae6be completed March 28, 2026, 12:02 a.m.
NEDg Description generation batch_69c71e7cd6448190845888760c677eda completed March 28, 2026, 12:19 a.m.
NED2 Entity disambiguation (via description) batch_69c71edd37048190bf4de088ad9f11de completed March 28, 2026, 12:20 a.m.
Created at: March 27, 2026, 2:16 p.m.