Triple

T822658
Position Surface form Disambiguated ID Type / Status
Subject Llanelli E17782 entity
Predicate hasRailwayStation P918 FINISHED
Object Llanelli railway station
Llanelli railway station is a key passenger rail stop in Carmarthenshire, Wales, serving the town of Llanelli on routes including the West Wales Line.
 E108529 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: Llanelli railway station | Statement: [Llanelli, hasRailwayStation, Llanelli railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Llanelli railway station
Context triple: [Llanelli, hasRailwayStation, Llanelli railway station]
  • A. Merthyr Tydfil railway station
    Merthyr Tydfil railway station is the main train station serving the town of Merthyr Tydfil in Wales, providing regional rail connections to surrounding areas.
  • B. Neath railway station
    Neath railway station is a key passenger rail hub in Neath, Wales, providing regional and intercity services on the South Wales rail network.
  • C. Pontypridd railway station
    Pontypridd railway station is a key commuter and interchange station in Pontypridd, Wales, serving as an important hub on the Valley Lines network north of Cardiff.
  • D. Bridgend railway station
    Bridgend railway station is the main railway hub serving the town of Bridgend in South Wales, providing regional and intercity rail connections.
  • 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: Llanelli railway station
Triple: [Llanelli, hasRailwayStation, Llanelli railway station]
Generated description
Llanelli railway station is a key passenger rail stop in Carmarthenshire, Wales, serving the town of Llanelli on routes including the West Wales Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Llanelli railway station
Target entity description: Llanelli railway station is a key passenger rail stop in Carmarthenshire, Wales, serving the town of Llanelli on routes including the West Wales Line.
  • A. Merthyr Tydfil railway station
    Merthyr Tydfil railway station is the main train station serving the town of Merthyr Tydfil in Wales, providing regional rail connections to surrounding areas.
  • B. Neath railway station
    Neath railway station is a key passenger rail hub in Neath, Wales, providing regional and intercity services on the South Wales rail network.
  • C. Pontypridd railway station
    Pontypridd railway station is a key commuter and interchange station in Pontypridd, Wales, serving as an important hub on the Valley Lines network north of Cardiff.
  • D. Bridgend railway station
    Bridgend railway station is the main railway hub serving the town of Bridgend in South Wales, providing regional and intercity rail connections.
  • 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

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_69a4937bcaac8190a322524ac6f45a5a completed March 1, 2026, 7:28 p.m.
NER Named-entity recognition batch_69a4ab7c139c8190b6d75661b5138d89 completed March 1, 2026, 9:11 p.m.
NED1 Entity disambiguation (via context triple) batch_69a7cf51a5608190a739b16078f4dfb0 completed March 4, 2026, 6:21 a.m.
NEDg Description generation batch_69a7d04b92188190bf04dddab69c6e6e completed March 4, 2026, 6:25 a.m.
NED2 Entity disambiguation (via description) batch_69a7d11309bc8190a2f02e9b2e0ec531 completed March 4, 2026, 6:28 a.m.
Created at: March 1, 2026, 7:38 p.m.