Triple

T764628
Position Surface form Disambiguated ID Type / Status
Subject South Wales Main Line E16146 entity
Predicate electrifiedSection P14045 FINISHED
Object London Paddington–Cardiff Central
London Paddington–Cardiff Central is a major intercity rail corridor in Great Britain linking central London with the Welsh capital, Cardiff.
E16146 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: London Paddington–Cardiff Central | Statement: [South Wales Main Line, electrifiedSection, London Paddington–Cardiff Central]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: London Paddington–Cardiff Central
Context triple: [South Wales Main Line, electrifiedSection, London Paddington–Cardiff Central]
  • A. London Euston – Birmingham
    London Euston – Birmingham is a major intercity rail corridor in England linking the capital with the West Midlands.
  • B. Birmingham New Street
    Birmingham New Street is the main railway station in Birmingham, England, and one of the busiest rail hubs in the United Kingdom.
  • C. South Wales Main Line
    The South Wales Main Line is a major railway route in Wales that connects London and the west of England with key South Wales cities such as Cardiff and Swansea.
  • D. Bristol Temple Meads
    Bristol Temple Meads is the main railway station in Bristol, England, serving as a major regional and intercity transport hub.
  • E. Cardiff Central railway station
    Cardiff Central railway station is the main railway hub in Cardiff, Wales, serving as a major interchange on the South Wales Main Line with extensive regional and long-distance services.
  • 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: London Paddington–Cardiff Central
Triple: [South Wales Main Line, electrifiedSection, London Paddington–Cardiff Central]
Generated description
London Paddington–Cardiff Central is a major intercity rail corridor in Great Britain linking central London with the Welsh capital, Cardiff.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: London Paddington–Cardiff Central
Target entity description: London Paddington–Cardiff Central is a major intercity rail corridor in Great Britain linking central London with the Welsh capital, Cardiff.
  • A. London Euston – Birmingham
    London Euston – Birmingham is a major intercity rail corridor in England linking the capital with the West Midlands.
  • B. Birmingham New Street
    Birmingham New Street is the main railway station in Birmingham, England, and one of the busiest rail hubs in the United Kingdom.
  • C. South Wales Main Line chosen
    The South Wales Main Line is a major railway route in Wales that connects London and the west of England with key South Wales cities such as Cardiff and Swansea.
  • D. Bristol Temple Meads
    Bristol Temple Meads is the main railway station in Bristol, England, serving as a major regional and intercity transport hub.
  • E. Cardiff Central railway station
    Cardiff Central railway station is the main railway hub in Cardiff, Wales, serving as a major interchange on the South Wales Main Line with extensive regional and long-distance services.
  • F. None of above.
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: electrifiedSection
Context triple: [South Wales Main Line, electrifiedSection, London Paddington–Cardiff Central]
  • A. electrificationSystem
    Indicates the type of electrical power system used to supply energy (typically to infrastructure or vehicles) for operation.
  • B. electrification
    Indicates the process or state of providing electrical power or converting something to operate using electricity.
  • C. isElectricRailway
    Indicates that a given railway system operates using electric power rather than diesel or other forms of propulsion.
  • D. electrificationUsedBetween chosen
    Indicates that an electrification system or method is applied or present along the segment or connection between two entities.
  • E. hasElectricCharge
    Indicates that an entity possesses a nonzero electric charge as a physical property.
  • 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_69a493684ee48190bd43b7c78da4aec8 completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4a69dfeb08190b54a476cfa66e6d6 completed March 1, 2026, 8:50 p.m.
NED1 Entity disambiguation (via context triple) batch_69a65e46d86c81908bc0ea469ccb091d completed March 3, 2026, 4:06 a.m.
NEDg Description generation batch_69a65eeaa34481909b0deac860fbadfc completed March 3, 2026, 4:09 a.m.
NED2 Entity disambiguation (via description) batch_69a65f7b09b08190bf38f02a912b2276 completed March 3, 2026, 4:11 a.m.
PD Predicate disambiguation batch_69a4a506106081909ef97a679ff00a5a completed March 1, 2026, 8:43 p.m.
Created at: March 1, 2026, 7:37 p.m.