Triple

T375288
Position Surface form Disambiguated ID Type / Status
Subject Merionethshire E8358 entity
Predicate hasRailway P848 FINISHED
Object Ffestiniog Railway
Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
E47909 NE FINISHED

How this triple was built (5 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: Ffestiniog Railway | Statement: [Merionethshire, hasRailway, Ffestiniog Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Ffestiniog Railway
Context triple: [Merionethshire, hasRailway, Ffestiniog Railway]
  • A. Cynwyd Line
    The Cynwyd Line is a short commuter rail service in the Philadelphia area operated by SEPTA, running between Center City and the Cynwyd neighborhood in Lower Merion Township.
  • B. Lochgelly railway station
    Lochgelly railway station is a local rail stop in the town of Lochgelly, Fife, Scotland, providing passenger services on regional routes.
  • C. South Wales Main Line
    The South Wales Main Line is a major railway route in Wales that connects London and the west of England with key South Wales cities such as Cardiff and Swansea.
  • D. Caledonian Railway
    Caledonian Railway was a major Scottish railway company that operated extensive routes across Scotland and into England during the 19th and early 20th centuries.
  • E. Derby railway works
    Derby railway works is a historic British railway engineering and manufacturing complex in Derby that played a major role in the development and maintenance of locomotives and rolling stock.
  • 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: Ffestiniog Railway
Triple: [Merionethshire, hasRailway, Ffestiniog Railway]
Generated description
Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Ffestiniog Railway
Target entity description: Ffestiniog Railway is a historic narrow-gauge heritage railway in North Wales, renowned as one of the oldest independent railway companies in the world and a popular tourist attraction through the Snowdonia landscape.
  • A. Cynwyd Line
    The Cynwyd Line is a short commuter rail service in the Philadelphia area operated by SEPTA, running between Center City and the Cynwyd neighborhood in Lower Merion Township.
  • B. Lochgelly railway station
    Lochgelly railway station is a local rail stop in the town of Lochgelly, Fife, Scotland, providing passenger services on regional routes.
  • C. South Wales Main Line
    The South Wales Main Line is a major railway route in Wales that connects London and the west of England with key South Wales cities such as Cardiff and Swansea.
  • D. Caledonian Railway
    Caledonian Railway was a major Scottish railway company that operated extensive routes across Scotland and into England during the 19th and early 20th centuries.
  • E. Derby railway works
    Derby railway works is a historic British railway engineering and manufacturing complex in Derby that played a major role in the development and maintenance of locomotives and rolling stock.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: hasRailway
Context triple: [Merionethshire, hasRailway, Ffestiniog Railway]
  • A. hasRailSystem
    Indicates that an entity possesses or is served by a rail-based transportation system.
  • B. hasRailStation
    Indicates that one entity possesses, contains, or is served by a rail station.
  • C. hasRailwayStation
    Indicates that a place or location is served by, or contains, a railway station.
  • D. railwayLine chosen
    Indicates that there is a railway line connection or route associated with or passing through the referenced entity.
  • E. servedByRailroad
    Indicates that a location or facility is provided with transportation or service by a railroad line or company.
  • F. None of above.

Provenance (6 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_69a2e7f2ec648190b42bc7db424f8109 completed Feb. 28, 2026, 1:04 p.m.
NER Named-entity recognition batch_69a2ec1585648190943f1c698e9b2d81 completed Feb. 28, 2026, 1:22 p.m.
NED1 Entity disambiguation (via context triple) batch_69a3f4dbf49081908ccd464668483b77 completed March 1, 2026, 8:12 a.m.
NEDg Description generation batch_69a3f6d18c488190ab509ded4d5b0367 completed March 1, 2026, 8:20 a.m.
NED2 Entity disambiguation (via description) batch_69a3fa368edc8190ac00be2189df7cf9 completed March 1, 2026, 8:35 a.m.
PD Predicate disambiguation batch_69a2e96216048190873ae533fa5b864d completed Feb. 28, 2026, 1:10 p.m.
Created at: Feb. 28, 2026, 1:08 p.m.