Triple

T7819487
Position Surface form Disambiguated ID Type / Status
Subject Caernarfon, Gwynedd E181091 entity
Predicate nearRailway P25143 FINISHED
Object Welsh Highland Railway terminus E245123 NE FINISHED

How this triple was built (3 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: Welsh Highland Railway terminus | Statement: [Caernarfon, Gwynedd, nearRailway, Welsh Highland Railway terminus]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07 
Target entity: Welsh Highland Railway terminus
Context triple: [Caernarfon, Gwynedd, nearRailway, Welsh Highland Railway terminus]
  • A. Welsh Highland Railway chosen
    The Welsh Highland Railway is a scenic narrow-gauge heritage railway in North Wales that runs through the mountainous landscapes of Snowdonia.
  • B. Sirhowy Railway
    The Sirhowy Railway was a historic Welsh railway line that played a key role in transporting coal and iron through the Sirhowy Valley during the industrial era.
  • C. Rhymney Railway
    Rhymney Railway was a historic Welsh railway company that primarily served the coal-mining communities of the Rhymney Valley and surrounding areas.
  • D. 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.
  • E. Ebbw Valley Railway
    The Ebbw Valley Railway is a passenger rail line in South Wales that connects communities in the Ebbw Valley with larger hubs such as Cardiff, supporting regional commuting and regeneration.
  • F. None of above.
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
PD Predicate disambiguation gpt-5-mini-2025-08-07 
Target predicate: nearRailway
Context triple: [Caernarfon, Gwynedd, nearRailway, Welsh Highland Railway terminus]
  • A. hasNearbyRailway chosen
    Indicates that one entity is located close to a railway associated with or relevant to another entity.
  • B. nearestRailwayLine
    Indicates that one railway line is the closest in distance to a given location or feature compared to all other railway lines.
  • C. nearestRailwayTerminus
    Indicates that one location is the closest railway terminus to another specified place.
  • D. hasNearbyRailwayStation
    Indicates that a railway station is located within a short or convenient distance from the referenced entity.
  • E. nearestPassengerRailStation
    Indicates that one entity is the closest passenger rail station in distance to another entity.
  • F. None of above.

Provenance (4 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_69ca828153f48190bdb27ac46f8e0745 completed March 30, 2026, 2:02 p.m.
NER Named-entity recognition batch_69caf97247c481908b18287eb7ee0a53 completed March 30, 2026, 10:30 p.m.
NED1 Entity disambiguation (via context triple) batch_69cb149266e88190a582b11d68702a6a completed March 31, 2026, 12:25 a.m.
PD Predicate disambiguation batch_69cae91687788190af9cb7aaa996d291 completed March 30, 2026, 9:20 p.m.
Created at: March 30, 2026, 4:40 p.m.