Triple

T19221663
Position Surface form Disambiguated ID Type / Status
Subject Ystrad E480628 entity
Predicate hasRailwayStation P918 FINISHED
Object Ystrad Rhondda railway station
Ystrad Rhondda railway station is a local passenger rail stop serving the community of Ystrad in the Rhondda Valley of Wales.
 E1364572 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: Ystrad Rhondda railway station | Statement: [Ystrad, hasRailwayStation, Ystrad Rhondda railway station]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Ystrad Rhondda railway station
Context triple: [Ystrad, hasRailwayStation, Ystrad Rhondda railway station]
  • A. Rhymney railway station
    Rhymney railway station is a passenger rail station in Rhymney, Wales, forming the northern terminus of a commuter route into Cardiff.
  • B. Ystrad Mynach railway station
    Ystrad Mynach railway station is a commuter rail stop in Caerphilly County Borough, Wales, providing local and regional services on the Valley Lines network.
  • C. 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.
  • D. 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.
  • E. Radyr railway station
    Radyr railway station is a suburban rail station in Radyr, Cardiff, Wales, serving as a key commuter hub on the local rail network.
  • 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: Ystrad Rhondda railway station
Triple: [Ystrad, hasRailwayStation, Ystrad Rhondda railway station]
Generated description
Ystrad Rhondda railway station is a local passenger rail stop serving the community of Ystrad in the Rhondda Valley of Wales.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07 
Target entity: Ystrad Rhondda railway station
Target entity description: Ystrad Rhondda railway station is a local passenger rail stop serving the community of Ystrad in the Rhondda Valley of Wales.
  • A. Rhymney railway station
    Rhymney railway station is a passenger rail station in Rhymney, Wales, forming the northern terminus of a commuter route into Cardiff.
  • B. Ystrad Mynach railway station
    Ystrad Mynach railway station is a commuter rail stop in Caerphilly County Borough, Wales, providing local and regional services on the Valley Lines network.
  • C. 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.
  • D. 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.
  • E. Radyr railway station
    Radyr railway station is a suburban rail station in Radyr, Cardiff, Wales, serving as a key commuter hub on the local rail network.
  • 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_69d8e8cb8c348190b52075823911c869 completed April 10, 2026, 12:10 p.m.
NER Named-entity recognition batch_69e5fa3fa9348190920f9d41b8beb900 completed April 20, 2026, 10:04 a.m.
NED1 Entity disambiguation (via context triple) batch_6a0700ecc4d08190b7f69985769e0e75 completed May 15, 2026, 11:18 a.m.
NEDg Description generation batch_6a0701dc358c8190b9ce4aea5315a31b completed May 15, 2026, 11:22 a.m.
NED2 Entity disambiguation (via description) batch_6a07027372c88190b19ea77d9b610a56 completed May 15, 2026, 11:24 a.m.
Created at: April 10, 2026, 1:24 p.m.