Triple

T22158369

Position	Surface form	Disambiguated ID	Type / Status
Subject	Severn Valley Railway station	`E547600`	entity
Predicate	hasOwner	`P347`	FINISHED
Object	Severn Valley Railway (preservation organisation) Severn Valley Railway (preservation organisation) is a heritage railway charity in England dedicated to preserving and operating the historic Severn Valley Railway line and its stations.	`E1521710`	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 Railway (preservation organisation) | Statement: [Severn Valley Railway station, hasOwner, Severn Valley Railway (preservation organisation)]

NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07

Target entity: Severn Valley Railway (preservation organisation)
Context triple: [Severn Valley Railway station, hasOwner, Severn Valley Railway (preservation organisation)]

A. Severn Valley Railway (Shropshire section)
The Severn Valley Railway (Shropshire section) is part of a preserved heritage steam railway running through the Severn Valley in Shropshire, England, popular for scenic journeys and historical train experiences.
B. Rother Valley Railway
Rother Valley Railway was a light railway in southeast England that formed part of the early rural rail network later associated with the Kent and East Sussex Railway.
C. Severn Valley Railway (Kidderminster terminus)
Severn Valley Railway (Kidderminster terminus) is the southern end of the heritage Severn Valley Railway, serving as a restored historic station and visitor hub for steam train journeys through the Worcestershire and Shropshire countryside.
D. Scottish Railway Preservation Society
The Scottish Railway Preservation Society is a heritage organization in Scotland dedicated to preserving and operating historic railway equipment and lines for education and public enjoyment.
E. Heritage Railway Association
The Heritage Railway Association is a UK-based organization that represents, supports, and advocates for heritage railways, tramways, and related preservation groups.
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 Railway (preservation organisation)
Triple: [Severn Valley Railway station, hasOwner, Severn Valley Railway (preservation organisation)]

Generated description

Severn Valley Railway (preservation organisation) is a heritage railway charity in England dedicated to preserving and operating the historic Severn Valley Railway line and its stations.

NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07

Target entity: Severn Valley Railway (preservation organisation)
Target entity description: Severn Valley Railway (preservation organisation) is a heritage railway charity in England dedicated to preserving and operating the historic Severn Valley Railway line and its stations.

A. Severn Valley Railway (Shropshire section)
The Severn Valley Railway (Shropshire section) is part of a preserved heritage steam railway running through the Severn Valley in Shropshire, England, popular for scenic journeys and historical train experiences.
B. Rother Valley Railway
Rother Valley Railway was a light railway in southeast England that formed part of the early rural rail network later associated with the Kent and East Sussex Railway.
C. Severn Valley Railway (Kidderminster terminus)
Severn Valley Railway (Kidderminster terminus) is the southern end of the heritage Severn Valley Railway, serving as a restored historic station and visitor hub for steam train journeys through the Worcestershire and Shropshire countryside.
D. Scottish Railway Preservation Society
The Scottish Railway Preservation Society is a heritage organization in Scotland dedicated to preserving and operating historic railway equipment and lines for education and public enjoyment.
E. Heritage Railway Association
The Heritage Railway Association is a UK-based organization that represents, supports, and advocates for heritage railways, tramways, and related preservation groups.
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_69e11e3b52088190ad5df386d01eb2fb`	completed	April 16, 2026, 5:36 p.m.
NER	Named-entity recognition	`batch_69f12a2b5b10819090630fbadacb67af`	completed	April 28, 2026, 9:44 p.m.
NED1	Entity disambiguation (via context triple)	`batch_6a0a970eca1081909e9927541a961961`	completed	May 18, 2026, 4:35 a.m.
NEDg	Description generation	`batch_6a0a977e9df08190a465d0005fccad4e`	completed	May 18, 2026, 4:37 a.m.
NED2	Entity disambiguation (via description)	`batch_6a0a97f868188190a2b1286bc3751e54`	completed	May 18, 2026, 4:39 a.m.

Created at: April 16, 2026, 8:33 p.m.