Triple

T21566962
Position Surface form Disambiguated ID Type / Status
Subject Pontlottyn E532185 entity
Predicate hasRailwayStation P918 FINISHED
Object Pontlottyn railway station
Pontlottyn railway station is a small local train stop in the village of Pontlottyn in Caerphilly, Wales, providing passenger services on the Rhymney Valley Line.
 E1491170 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: Pontlottyn railway station | Statement: [Pontlottyn, hasRailwayStation, Pontlottyn railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Pontlottyn railway station
Context triple: [Pontlottyn, hasRailwayStation, Pontlottyn railway station]
  • A. Pont-y-Pant railway station
    Pont-y-Pant railway station is a small rural stop on the Conwy Valley Line in the Lledr Valley of north Wales, serving the local community and walkers in this scenic area.
  • B. Tanygrisiau railway station
    Tanygrisiau railway station is a small stop on the heritage Ffestiniog Railway in Gwynedd, Wales, serving the village of Tanygrisiau near Blaenau Ffestiniog.
  • C. Ton Pentre railway station
    Ton Pentre railway station is a small local train stop serving the village of Ton Pentre in the Rhondda Valley of South Wales.
  • D. 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.
  • E. Rhyd Ddu station
    Rhyd Ddu station is a rural stop on the narrow-gauge Welsh Highland Railway in Snowdonia, serving the village of Rhyd Ddu and nearby mountain walking routes.
  • 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: Pontlottyn railway station
Triple: [Pontlottyn, hasRailwayStation, Pontlottyn railway station]
Generated description
Pontlottyn railway station is a small local train stop in the village of Pontlottyn in Caerphilly, Wales, providing passenger services on the Rhymney Valley Line.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Pontlottyn railway station
Target entity description: Pontlottyn railway station is a small local train stop in the village of Pontlottyn in Caerphilly, Wales, providing passenger services on the Rhymney Valley Line.
  • A. Pont-y-Pant railway station
    Pont-y-Pant railway station is a small rural stop on the Conwy Valley Line in the Lledr Valley of north Wales, serving the local community and walkers in this scenic area.
  • B. Tanygrisiau railway station
    Tanygrisiau railway station is a small stop on the heritage Ffestiniog Railway in Gwynedd, Wales, serving the village of Tanygrisiau near Blaenau Ffestiniog.
  • C. Ton Pentre railway station
    Ton Pentre railway station is a small local train stop serving the village of Ton Pentre in the Rhondda Valley of South Wales.
  • D. 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.
  • E. Rhyd Ddu station
    Rhyd Ddu station is a rural stop on the narrow-gauge Welsh Highland Railway in Snowdonia, serving the village of Rhyd Ddu and nearby mountain walking routes.
  • 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_69e0c460db088190828c64206a450273 completed April 16, 2026, 11:13 a.m.
NER Named-entity recognition batch_69eee9c9f264819085b4807923860793 completed April 27, 2026, 4:44 a.m.
NED1 Entity disambiguation (via context triple) batch_6a09f66e2c1c819097175c7ccab18130 completed May 17, 2026, 5:10 p.m.
NEDg Description generation batch_6a09f70d94308190b1c8f11e0a93b883 completed May 17, 2026, 5:12 p.m.
NED2 Entity disambiguation (via description) batch_6a09f7f91058819081d7230042ec080c completed May 17, 2026, 5:16 p.m.
Created at: April 16, 2026, 6:30 p.m.