Triple

T2294249
Position Surface form Disambiguated ID Type / Status
Subject Trawsfynydd E51573 entity
Predicate hasRailwayStation P918 FINISHED
Object Trawsfynydd railway station
Trawsfynydd railway station is a disused former railway station in Gwynedd, Wales, that once served the village of Trawsfynydd and its surrounding rural area.
 E278503 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: Trawsfynydd railway station | Statement: [Trawsfynydd, hasRailwayStation, Trawsfynydd railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Trawsfynydd railway station
Context triple: [Trawsfynydd, hasRailwayStation, Trawsfynydd railway station]
  • A. Cynwyd station
    Cynwyd station is a SEPTA regional rail station in Bala Cynwyd, Pennsylvania, serving as the northern endpoint of the short Cynwyd Line into Philadelphia.
  • B. Nant Gwernol railway station
    Nant Gwernol railway station is the upper mountain terminus of the historic narrow-gauge Talyllyn Railway in Mid Wales, serving as a scenic endpoint for heritage steam train services.
  • C. Tywyn railway station
    Tywyn railway station is a small coastal railway stop in Gwynedd, Wales, serving the town of Tywyn on the Cambrian Line.
  • D. 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.
  • E. 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.
  • 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: Trawsfynydd railway station
Triple: [Trawsfynydd, hasRailwayStation, Trawsfynydd railway station]
Generated description
Trawsfynydd railway station is a disused former railway station in Gwynedd, Wales, that once served the village of Trawsfynydd and its surrounding rural area.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Trawsfynydd railway station
Target entity description: Trawsfynydd railway station is a disused former railway station in Gwynedd, Wales, that once served the village of Trawsfynydd and its surrounding rural area.
  • A. Cynwyd station
    Cynwyd station is a SEPTA regional rail station in Bala Cynwyd, Pennsylvania, serving as the northern endpoint of the short Cynwyd Line into Philadelphia.
  • B. Nant Gwernol railway station
    Nant Gwernol railway station is the upper mountain terminus of the historic narrow-gauge Talyllyn Railway in Mid Wales, serving as a scenic endpoint for heritage steam train services.
  • C. Tywyn railway station
    Tywyn railway station is a small coastal railway stop in Gwynedd, Wales, serving the town of Tywyn on the Cambrian Line.
  • D. 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.
  • E. 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.
  • 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_69a88b09c644819090b503456d96bf70 completed March 4, 2026, 7:42 p.m.
NER Named-entity recognition batch_69abc5da667881909186adf23a2bd45b completed March 7, 2026, 6:29 a.m.
NED1 Entity disambiguation (via context triple) batch_69af65388fd48190995f778d6438f739 completed March 10, 2026, 12:26 a.m.
NEDg Description generation batch_69af65f16fc48190a8611279322dd936 completed March 10, 2026, 12:29 a.m.
NED2 Entity disambiguation (via description) batch_69af66613dc88190af6a0aa1108a9069 completed March 10, 2026, 12:31 a.m.
Created at: March 4, 2026, 7:49 p.m.