Triple

T12571633
Position Surface form Disambiguated ID Type / Status
Subject Dunkeld and Birnam railway station E295616 entity
Predicate originalOperator P179 FINISHED
Object Perth and Dunkeld Railway
The Perth and Dunkeld Railway was a 19th-century Scottish railway company that built and operated the line connecting Perth to Dunkeld, later becoming part of the Highland Railway network.
E989608 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: Perth and Dunkeld Railway | Statement: [Dunkeld and Birnam railway station, originalOperator, Perth and Dunkeld Railway]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Perth and Dunkeld Railway
Context triple: [Dunkeld and Birnam railway station, originalOperator, Perth and Dunkeld Railway]
  • A. Highland Railway
    The Highland Railway was a former Scottish railway company that operated routes through the Scottish Highlands before being absorbed into the London, Midland and Scottish Railway in the 1923 Grouping.
  • B. Dundee and Arbroath Railway
    The Dundee and Arbroath Railway was an early Scottish railway company that operated a line along the east coast between the cities of Dundee and Arbroath.
  • C. Goldfields Railway
    Goldfields Railway is a preserved heritage railway in New Zealand that operates vintage trains for tourists and rail enthusiasts along a historic mining-era line.
  • D. Perth–Stirling line
    The Perth–Stirling line was a suburban railway route in Perth, Western Australia, that connected the city centre with the northern suburb of Stirling before its services were integrated into the modern Joondalup line.
  • E. Eastern Goldfields Railway
    The Eastern Goldfields Railway is a major rail line in Western Australia that connects the gold-mining city of Kalgoorlie with Perth and other parts of the state, supporting both passenger and freight transport.
  • 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: Perth and Dunkeld Railway
Triple: [Dunkeld and Birnam railway station, originalOperator, Perth and Dunkeld Railway]
Generated description
The Perth and Dunkeld Railway was a 19th-century Scottish railway company that built and operated the line connecting Perth to Dunkeld, later becoming part of the Highland Railway network.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Perth and Dunkeld Railway
Target entity description: The Perth and Dunkeld Railway was a 19th-century Scottish railway company that built and operated the line connecting Perth to Dunkeld, later becoming part of the Highland Railway network.
  • A. Highland Railway
    The Highland Railway was a former Scottish railway company that operated routes through the Scottish Highlands before being absorbed into the London, Midland and Scottish Railway in the 1923 Grouping.
  • B. Dundee and Arbroath Railway
    The Dundee and Arbroath Railway was an early Scottish railway company that operated a line along the east coast between the cities of Dundee and Arbroath.
  • C. Goldfields Railway
    Goldfields Railway is a preserved heritage railway in New Zealand that operates vintage trains for tourists and rail enthusiasts along a historic mining-era line.
  • D. Perth–Stirling line
    The Perth–Stirling line was a suburban railway route in Perth, Western Australia, that connected the city centre with the northern suburb of Stirling before its services were integrated into the modern Joondalup line.
  • E. Eastern Goldfields Railway
    The Eastern Goldfields Railway is a major rail line in Western Australia that connects the gold-mining city of Kalgoorlie with Perth and other parts of the state, supporting both passenger and freight transport.
  • 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_69d6ad9cac2c81908e8a7bed82d1e21d completed April 8, 2026, 7:33 p.m.
NER Named-entity recognition batch_69d954a52c788190beac128a97e34dc1 completed April 10, 2026, 7:51 p.m.
NED1 Entity disambiguation (via context triple) batch_69f65595826081908035655f7930f55a completed May 2, 2026, 7:50 p.m.
NEDg Description generation batch_69f656a86ff48190bd3debd30e11df80 completed May 2, 2026, 7:55 p.m.
NED2 Entity disambiguation (via description) batch_69f657b1b13c8190984300f24c0b2083 completed May 2, 2026, 7:59 p.m.
Created at: April 8, 2026, 11:50 p.m.