Triple

T20651272
Position Surface form Disambiguated ID Type / Status
Subject Severn Valley Railway station, Bridgnorth E507499 entity
Predicate line P1293 FINISHED
Object Severn Valley line
The Severn Valley line is a historic heritage railway route in England that runs through the Severn Valley, known for its preserved steam services and scenic countryside views.
E1442447 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: Severn Valley line | Statement: [Severn Valley Railway station, Bridgnorth, line, Severn Valley line]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Severn Valley line
Context triple: [Severn Valley Railway station, Bridgnorth, line, Severn Valley line]
  • A. Marston Vale Line
    The Marston Vale Line is a regional railway route in England connecting Bletchley and Bedford, serving towns and villages across the Marston Vale area.
  • B. Stour Valley Line
    The Stour Valley Line is a railway route in the West Midlands of England that forms part of the main line between Birmingham and Wolverhampton, serving a number of suburban and commuter stations.
  • C. Oxford–Bicester line
    The Oxford–Bicester line is a railway route in Oxfordshire, England, connecting Oxford with the town of Bicester as part of the regional and commuter rail network.
  • D. Chiltern Main Line
    The Chiltern Main Line is a major railway route in England connecting London Marylebone with the West Midlands via key towns such as High Wycombe, Banbury, and Leamington Spa.
  • E. Wessex Main Line
    The Wessex Main Line is a key railway route in southern England linking Bristol and Bath with Salisbury and Southampton, serving as an important regional passenger corridor.
  • 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: Severn Valley line
Triple: [Severn Valley Railway station, Bridgnorth, line, Severn Valley line]
Generated description
The Severn Valley line is a historic heritage railway route in England that runs through the Severn Valley, known for its preserved steam services and scenic countryside views.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Severn Valley line
Target entity description: The Severn Valley line is a historic heritage railway route in England that runs through the Severn Valley, known for its preserved steam services and scenic countryside views.
  • A. Marston Vale Line
    The Marston Vale Line is a regional railway route in England connecting Bletchley and Bedford, serving towns and villages across the Marston Vale area.
  • B. Stour Valley Line
    The Stour Valley Line is a railway route in the West Midlands of England that forms part of the main line between Birmingham and Wolverhampton, serving a number of suburban and commuter stations.
  • C. Oxford–Bicester line
    The Oxford–Bicester line is a railway route in Oxfordshire, England, connecting Oxford with the town of Bicester as part of the regional and commuter rail network.
  • D. Chiltern Main Line
    The Chiltern Main Line is a major railway route in England connecting London Marylebone with the West Midlands via key towns such as High Wycombe, Banbury, and Leamington Spa.
  • E. Wessex Main Line
    The Wessex Main Line is a key railway route in southern England linking Bristol and Bath with Salisbury and Southampton, serving as an important regional passenger corridor.
  • 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_69e0b4bf58c081908e52a4500e03ff83 completed April 16, 2026, 10:06 a.m.
NER Named-entity recognition batch_69e6af21e87c8190835bf2b2ef195626 completed April 20, 2026, 10:56 p.m.
NED1 Entity disambiguation (via context triple) batch_6a08c59354388190b5c2a0c1bdd14575 completed May 16, 2026, 7:29 p.m.
NEDg Description generation batch_6a08c648e35881908c480b0afa383422 completed May 16, 2026, 7:32 p.m.
NED2 Entity disambiguation (via description) batch_6a08c6c6f9608190bdbcdd58f6b14008 completed May 16, 2026, 7:34 p.m.
Created at: April 16, 2026, 11:43 a.m.