Triple

T10693565
Position Surface form Disambiguated ID Type / Status
Subject Nant Gwernol railway station E252072 entity
Predicate isMountainTerminusOf P95321 FINISHED
Object Talyllyn Railway E48102 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: Talyllyn Railway | Statement: [Nant Gwernol railway station, isMountainTerminusOf, Talyllyn Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Talyllyn Railway
Context triple: [Nant Gwernol railway station, isMountainTerminusOf, Talyllyn Railway]
  • A. Talyllyn Railway chosen
    Talyllyn Railway is a historic narrow-gauge heritage railway in Wales, renowned as the world’s first preserved railway to be operated primarily by volunteers.
  • B. Llangollen Railway
    Llangollen Railway is a preserved heritage railway in Denbighshire, Wales, known for operating steam and heritage diesel services through the scenic Dee Valley.
  • C. Pelion Railway
    Pelion Railway is a historic narrow-gauge mountain railway in Greece, renowned for its scenic route through the Pelion peninsula and its traditional steam trains.
  • D. Conwy Valley Line
    The Conwy Valley Line is a scenic railway route in North Wales that runs through the Conwy Valley from the coast into the Snowdonia National Park.
  • 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: isMountainTerminusOf
Context triple: [Nant Gwernol railway station, isMountainTerminusOf, Talyllyn Railway]
  • A. isSummitOf
    Indicates that one entity is the highest point or peak (summit) of another entity, such as a mountain or structure.
  • B. isEasternPeakOf
    Indicates that one peak is the eastern member or counterpart within a set or pair of related peaks.
  • C. isMajorWatercourseOf
    Indicates that a watercourse is a primary or significant river or stream associated with, or flowing through, a particular geographic area or feature.
  • D. isSourceAndSummitOf
    Indicates that an entity serves both as the originating point (source) and the highest point (summit) of another entity or feature.
  • E. isWatercourseOf
    Indicates that a watercourse (such as a river or stream) flows through, belongs to, or is geographically associated with a particular area or feature.
  • 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_69d6aa5bd7c08190a816e733b4045c23 completed April 8, 2026, 7:19 p.m.
NER Named-entity recognition batch_69d6fd38c24c8190a105a9dfdf705b38 completed April 9, 2026, 1:13 a.m.
NED1 Entity disambiguation (via context triple) batch_69e4acb7fdac8190bced7e26c948ee4a completed April 19, 2026, 10:21 a.m.
PD Predicate disambiguation batch_69d6dd8cc0788190b4c02a772e4b58b3 completed April 8, 2026, 10:58 p.m.
PDg Predicate description generation batch_69d6df47899481909ac0e518d94883cb completed April 8, 2026, 11:05 p.m.
Created at: April 8, 2026, 9:11 p.m.