Triple

T17441579
Position Surface form Disambiguated ID Type / Status
Subject Okehampton railway station E424666 entity
Predicate heritageOperator P56395 FINISHED
Object Dartmoor Railway (historic)
Dartmoor Railway (historic) was a preserved heritage railway in Devon, England, that operated tourist and enthusiast services on part of the former London and South Western Railway route around Okehampton and the edge of Dartmoor.
E1269036 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: Dartmoor Railway (historic) | Statement: [Okehampton railway station, heritageOperator, Dartmoor Railway (historic)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Dartmoor Railway (historic)
Context triple: [Okehampton railway station, heritageOperator, Dartmoor Railway (historic)]
  • A. Dartmoor Line
    The Dartmoor Line is a rural railway route in Devon, England, linking Exeter with the edge of Dartmoor and serving communities such as Okehampton.
  • B. Bodmin and Wenford Railway
    Bodmin and Wenford Railway is a preserved heritage railway in Cornwall, England, offering steam and diesel train rides along a restored former branch line.
  • C. South Devon Railway
    South Devon Railway was a historic railway company in Devon, England, that developed and operated key lines in the region during the 19th century.
  • D. Swanage Railway
    Swanage Railway is a preserved heritage railway in southern England that operates steam and diesel trains along a scenic route on the Isle of Purbeck.
  • E. North Devon Railway
    The North Devon Railway was a 19th-century railway company in southwest England that developed key routes linking Exeter with Barnstaple and the surrounding North Devon area.
  • 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: Dartmoor Railway (historic)
Triple: [Okehampton railway station, heritageOperator, Dartmoor Railway (historic)]
Generated description
Dartmoor Railway (historic) was a preserved heritage railway in Devon, England, that operated tourist and enthusiast services on part of the former London and South Western Railway route around Okehampton and the edge of Dartmoor.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Dartmoor Railway (historic)
Target entity description: Dartmoor Railway (historic) was a preserved heritage railway in Devon, England, that operated tourist and enthusiast services on part of the former London and South Western Railway route around Okehampton and the edge of Dartmoor.
  • A. Dartmoor Line chosen
    The Dartmoor Line is a rural railway route in Devon, England, linking Exeter with the edge of Dartmoor and serving communities such as Okehampton.
  • B. Bodmin and Wenford Railway
    Bodmin and Wenford Railway is a preserved heritage railway in Cornwall, England, offering steam and diesel train rides along a restored former branch line.
  • C. South Devon Railway
    South Devon Railway was a historic railway company in Devon, England, that developed and operated key lines in the region during the 19th century.
  • D. Swanage Railway
    Swanage Railway is a preserved heritage railway in southern England that operates steam and diesel trains along a scenic route on the Isle of Purbeck.
  • E. North Devon Railway
    The North Devon Railway was a 19th-century railway company in southwest England that developed key routes linking Exeter with Barnstaple and the surrounding North Devon area.
  • F. None of above.

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_69d889db0ba481908402409af3b37917 completed April 10, 2026, 5:25 a.m.
NER Named-entity recognition batch_69e44ff75538819083f77756d39a1aaa completed April 19, 2026, 3:45 a.m.
NED1 Entity disambiguation (via context triple) batch_6a01b81c298c81908fe3dc709632d96c completed May 11, 2026, 11:06 a.m.
NEDg Description generation batch_6a01b8fa4d1c8190a1307465450dceda completed May 11, 2026, 11:09 a.m.
NED2 Entity disambiguation (via description) batch_6a01b9a82b808190a10c288c15750bfe completed May 11, 2026, 11:12 a.m.
Created at: April 10, 2026, 5:46 a.m.