Triple

T3119433
Position Surface form Disambiguated ID Type / Status
Subject Borderlands Line E65144 entity
Predicate hasStation P35 FINISHED
Object Cefn-y-Bedd railway station
Cefn-y-Bedd railway station is a small rural stop in Wrexham County Borough, Wales, serving the village of Cefn-y-Bedd with local passenger services.
 E331380 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: Cefn-y-Bedd railway station | Statement: [Borderlands Line, hasStation, Cefn-y-Bedd railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Cefn-y-Bedd railway station
Context triple: [Borderlands Line, hasStation, Cefn-y-Bedd railway station]
  • A. 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.
  • B. Llanbedr railway station
    Llanbedr railway station is a small rural stop on the Cambrian Coast Line in Gwynedd, Wales, serving the village of Llanbedr and nearby coastal areas.
  • C. 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.
  • D. Abergynolwyn railway station
    Abergynolwyn railway station is a historic stop on the narrow-gauge Talyllyn Railway in Gwynedd, Wales, serving the former slate-mining village of Abergynolwyn.
  • E. Tywyn railway station
    Tywyn railway station is a small coastal railway stop in Gwynedd, Wales, serving the town of Tywyn on the Cambrian Line.
  • 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: Cefn-y-Bedd railway station
Triple: [Borderlands Line, hasStation, Cefn-y-Bedd railway station]
Generated description
Cefn-y-Bedd railway station is a small rural stop in Wrexham County Borough, Wales, serving the village of Cefn-y-Bedd with local passenger services.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Cefn-y-Bedd railway station
Target entity description: Cefn-y-Bedd railway station is a small rural stop in Wrexham County Borough, Wales, serving the village of Cefn-y-Bedd with local passenger services.
  • A. 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.
  • B. Llanbedr railway station
    Llanbedr railway station is a small rural stop on the Cambrian Coast Line in Gwynedd, Wales, serving the village of Llanbedr and nearby coastal areas.
  • C. 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.
  • D. Abergynolwyn railway station
    Abergynolwyn railway station is a historic stop on the narrow-gauge Talyllyn Railway in Gwynedd, Wales, serving the former slate-mining village of Abergynolwyn.
  • E. Tywyn railway station
    Tywyn railway station is a small coastal railway stop in Gwynedd, Wales, serving the town of Tywyn on the Cambrian Line.
  • 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_69ad857fcc088190b0c4d45a5cde6f61 completed March 8, 2026, 2:19 p.m.
NER Named-entity recognition batch_69ada4eb6a6081909df41f67999eb4ff completed March 8, 2026, 4:33 p.m.
NED1 Entity disambiguation (via context triple) batch_69b224cf54088190a069b4eef0a5f7d2 completed March 12, 2026, 2:28 a.m.
NEDg Description generation batch_69b2264c32b0819082fce40dfc8e5b88 completed March 12, 2026, 2:34 a.m.
NED2 Entity disambiguation (via description) batch_69b226bb6ebc81908c56a6fd8c2e536b completed March 12, 2026, 2:36 a.m.
Created at: March 8, 2026, 3:04 p.m.